diff --git a/README.md b/README.md
index 2afdf9b..e33b1bf 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@
 
 [![Build Status](https://travis-ci.org/hmrc/openid-connect-userinfo.svg?branch=master)](https://travis-ci.org/hmrc/openid-connect-userinfo) [ ![Download](https://api.bintray.com/packages/hmrc/releases/openid-connect-userinfo/images/download.svg) ](https://bintray.com/hmrc/releases/openid-connect-userinfo/_latestVersion)
 
-This Beta REST API aims to provide a specification compliant OpenID Connect implementation. It allows consumers to access user details with consent and in the OpenID Connect UserInfo format.
+The REST API, exposed by the HMRC API Platform as /userinfo to external clients, aims to provide a specification compliant OpenID Connect implementation. It allows consumers to access user details with consent and in the OpenID Connect UserInfo format.
 
 A typical workflow would be:
 
@@ -15,10 +15,15 @@ User details data structures follow the OpenId Connect UserInfo specification (s
 
 You can dive deeper into the documentation in the [API Developer Hub](https://developer.service.hmrc.gov.uk/api-documentation/docs/api#openid-connect-userinfo).
 
-## Deprecated Class Usage
-You can find the deprecation suppression `@nowarn("cat=deprecation")` in the code in few places.
+## Authentication tokens
+Note, the /userinfo endpoint is an external API endpoint. This endpoint requires an API token for authentication.
 
-The reason is that when the latest `v2.Retrievals` was used then the integration tests were broken and wasn't obvious why.
+## API
+
+| Method | HMRC API Platform Path | Internal Path | Description                                                                                                          |
+|--------|------------------------|---------------|----------------------------------------------------------------------------------------------------------------------|
+| GET    | /userinfo              | /             | Returns information about an End-User as requested in the openid scopes as documented in the published API document. |
+| POST   | Internal use only      | /             |                                                                                                                      |
 
 ## Running Locally
 Run the service `sbt run -Drun.mode=Dev`
diff --git a/app/config/FeatureSwitch.scala b/app/config/FeatureSwitch.scala
deleted file mode 100644
index 227c326..0000000
--- a/app/config/FeatureSwitch.scala
+++ /dev/null
@@ -1,45 +0,0 @@
-/*
- * Copyright 2024 HM Revenue & Customs
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package config
-
-case class FeatureSwitch(name: String, isEnabled: Boolean)
-
-object FeatureSwitch {
-
-  def forName(name: String) = FeatureSwitch(name, java.lang.Boolean.getBoolean(systemPropertyName(name)))
-
-  def enable(switch: FeatureSwitch): FeatureSwitch = setProp(switch.name, true)
-
-  def disable(switch: FeatureSwitch): FeatureSwitch = setProp(switch.name, false)
-
-  private def setProp(name: String, value: Boolean): FeatureSwitch = {
-    sys.props += ((systemPropertyName(name), value.toString))
-    forName(name)
-  }
-
-  private def systemPropertyName(name: String) = s"feature.$name"
-
-}
-
-object UserInfoFeatureSwitches {
-
-  def countryCode = FeatureSwitch.forName("countryCode")
-  def addressLine5 = FeatureSwitch.forName("addressLine5")
-
-  def allSwitches: Seq[FeatureSwitch] = Seq(countryCode, addressLine5)
-
-}
diff --git a/app/controllers/testOnly/FeatureSwitchController.scala b/app/controllers/testOnly/FeatureSwitchController.scala
deleted file mode 100644
index 641903c..0000000
--- a/app/controllers/testOnly/FeatureSwitchController.scala
+++ /dev/null
@@ -1,57 +0,0 @@
-/*
- * Copyright 2024 HM Revenue & Customs
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package controllers.testOnly
-
-import config.{FeatureSwitch, UserInfoFeatureSwitches}
-import play.api.libs.json.{JsValue, Json, OWrites, Reads}
-import play.api.mvc.{Action, AnyContent, ControllerComponents}
-import uk.gov.hmrc.play.bootstrap.backend.controller.BackendController
-
-import javax.inject.{Inject, Singleton}
-import scala.concurrent.{ExecutionContext, Future}
-
-@Singleton
-class FeatureSwitchController @Inject() ()(implicit cc: ControllerComponents, ec: ExecutionContext) extends BackendController(cc) {
-
-  implicit val featureSwitchReads:        Reads[FeatureSwitch] = Json.reads[FeatureSwitch]
-  implicit val featureSwitchWrites:       OWrites[FeatureSwitch] = Json.writes[FeatureSwitch]
-  implicit val FeatureSwitchRequestReads: Reads[FeatureSwitchRequest] = Json.reads[FeatureSwitchRequest]
-
-  def getFlags: Action[AnyContent] = Action {
-    Ok(currentFeatureSwitchesAsJson)
-  }
-
-  def setFlags(): Action[JsValue] = {
-    Action.async(parse.json) { implicit request =>
-      withJsonBody[FeatureSwitchRequest] { ffRequest =>
-        val featureSwitches: Seq[FeatureSwitch] = ffRequest.featureSwitches
-        featureSwitches.foreach(fs =>
-          if (fs.isEnabled) {
-            FeatureSwitch.enable(FeatureSwitch.forName(fs.name))
-          } else {
-            FeatureSwitch.disable(FeatureSwitch.forName(fs.name))
-          }
-        )
-        Future(Accepted(currentFeatureSwitchesAsJson))
-      }
-    }
-  }
-
-  private def currentFeatureSwitchesAsJson = Json.toJson(for (fs <- UserInfoFeatureSwitches.allSwitches) yield FeatureSwitch(fs.name, fs.isEnabled))
-}
-
-case class FeatureSwitchRequest(featureSwitches: Seq[FeatureSwitch]) {}
diff --git a/app/data/UserInfoGenerator.scala b/app/data/UserInfoGenerator.scala
index 744624a..7f7bda8 100644
--- a/app/data/UserInfoGenerator.scala
+++ b/app/data/UserInfoGenerator.scala
@@ -19,7 +19,6 @@ package data
 import javax.inject.Singleton
 import java.time.LocalDate
 import uk.gov.hmrc.auth.core.{Enrolment, EnrolmentIdentifier}
-import config.UserInfoFeatureSwitches
 import domain.{Address, GovernmentGatewayDetails, Mdtp, UserInfo}
 
 import scala.util.Random.{nextInt => randomNextInt}
@@ -75,27 +74,21 @@ class UserInfoGenerator {
     )
   )
 
-  def addressWithToggleableFeatures(isAddressLine5: Boolean = false, isCountryCode: Boolean = false): Option[Address] = {
-    val addressLine5 = if (isAddressLine5) "\n|Line5" else ""
-    val code = if (isCountryCode) Some("GB") else None
-
+  def address: Option[Address] =
     Some(
       Address(
         s"""221B Baker Street
-        |Town centre
-        |London
-        |England$addressLine5
-        |NW1 9NT
-        |Great Britain""".stripMargin,
+           |Town centre
+           |London
+           |England
+           |Line5
+           |NW1 9NT
+           |Great Britain""".stripMargin,
         Some("NW1 9NT"),
         Some("Great Britain"),
-        code
+        Some("GB")
       )
     )
-  }
-
-  def address: Option[Address] =
-    addressWithToggleableFeatures(UserInfoFeatureSwitches.addressLine5.isEnabled, UserInfoFeatureSwitches.countryCode.isEnabled)
 
   val enrolments: Set[Enrolment] = Set(Enrolment("IR-SA", List(EnrolmentIdentifier("UTR", "174371121")), "Activated"))
   private val government_gateway_v1_0: GovernmentGatewayDetails = GovernmentGatewayDetails(
diff --git a/app/services/UserInfoTransformer.scala b/app/services/UserInfoTransformer.scala
index 0f7d691..36bea80 100644
--- a/app/services/UserInfoTransformer.scala
+++ b/app/services/UserInfoTransformer.scala
@@ -20,7 +20,6 @@ import javax.inject.Singleton
 import java.time.LocalDate
 import uk.gov.hmrc.auth.core.Enrolments
 import uk.gov.hmrc.auth.core.retrieve.ItmpAddress
-import config.UserInfoFeatureSwitches
 import domain._
 
 @Singleton
@@ -39,10 +38,8 @@ class UserInfoTransformer {
 
     def address = if (scopes.contains("address")) {
       val countryName = desUserInfo flatMap { c => c.address.countryName }
-      val countryCode = if (UserInfoFeatureSwitches.countryCode.isEnabled) { desUserInfo flatMap { u => u.address.countryCode } }
-      else None
+      val countryCode = desUserInfo flatMap { u => u.address.countryCode }
       desUserInfo map (u => Address(formattedAddress(u.address), u.address.postCode, countryName, countryCode))
-
     } else None
 
     val identifier = if (scopes.contains("openid:gov-uk-identifiers")) authority flatMap (_.nino) else None
@@ -74,7 +71,7 @@ class UserInfoTransformer {
 
   private def formattedAddress(desAddress: ItmpAddress) = {
     val countryName = desAddress.countryName
-    val addressLine5 = if (UserInfoFeatureSwitches.addressLine5.isEnabled) desAddress.line5 else None
+    val addressLine5 = desAddress.line5
     Seq(desAddress.line1, desAddress.line2, desAddress.line3, desAddress.line4, addressLine5, desAddress.postCode, countryName).flatten.mkString("\n")
   }
 
diff --git a/conf/application.conf b/conf/application.conf
index ad50ff7..2989f3a 100644
--- a/conf/application.conf
+++ b/conf/application.conf
@@ -54,9 +54,6 @@ play.i18n.langs = ["en"]
 # !!!WARNING!!! DO NOT CHANGE THIS ROUTER
 play.http.router = prod.Routes
 
-feature.addressLine5 = false
-feature.countryCode = false
-
 # Controller
 # ~~~~~
 # By default all controllers will have authorisation, logging and 
@@ -84,12 +81,6 @@ controllers {
     needsLogging = true
     needsAuditing = false
   }
-
-  controllers.testOnly.FeatureSwitchController = {
-    needsAuth = false
-    needsLogging = true
-    needsAuditing = false
-  }
 }
 
 # Root logger:
diff --git a/conf/testOnlyDoNotUseInAppConf.routes b/conf/testOnlyDoNotUseInAppConf.routes
index bd6ee64..ac633df 100644
--- a/conf/testOnlyDoNotUseInAppConf.routes
+++ b/conf/testOnlyDoNotUseInAppConf.routes
@@ -1,4 +1 @@
-GET   /test-only/feature-switches  @controllers.testOnly.FeatureSwitchController.getFlags
-POST  /test-only/feature-switches  @controllers.testOnly.FeatureSwitchController.setFlags
-
 ->    /                            prod.Routes
\ No newline at end of file
diff --git a/it/test/FeatureSwitchControllerISpec.scala b/it/test/FeatureSwitchControllerISpec.scala
deleted file mode 100644
index 4d68650..0000000
--- a/it/test/FeatureSwitchControllerISpec.scala
+++ /dev/null
@@ -1,74 +0,0 @@
-/*
- * Copyright 2024 HM Revenue & Customs
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-import play.api.libs.json.Json
-import scalaj.http.Http
-
-class FeatureSwitchControllerISpec extends BaseFeatureISpec {
-
-  val serviceUrl = "/test-only/feature-switches"
-
-  Feature("getting feature switches") {
-    Scenario("calling GET /test-only/feature-switches") {
-      Given("we call GET /test-only/feature-switches")
-
-      val result = Http(resource(s"$serviceUrl")).asString
-
-      Then("the feature switches are returned as json with 200 OK")
-
-      result.code shouldBe 200
-      Json.parse(result.body) shouldBe Json.arr(Json.obj("name" -> "countryCode", "isEnabled" -> false),
-                                                Json.obj("name" -> "addressLine5", "isEnabled" -> false)
-                                               )
-    }
-  }
-
-  Feature("updating feature switches") {
-    Scenario("calling POST /test-only/feature-switches") {
-      Given("we call GET /test-only/feature-switches")
-
-      val result = Http(resource(s"$serviceUrl")).asString
-
-      Then("the feature switches are returned as json with 200 OK")
-
-      result.code shouldBe 200
-      Json.parse(result.body) shouldBe Json.arr(Json.obj("name" -> "countryCode", "isEnabled" -> false),
-                                                Json.obj("name" -> "addressLine5", "isEnabled" -> false)
-                                               )
-
-      When("we update the flags we should get 406 Accepted")
-
-      val payload = Json.obj(
-        "featureSwitches" -> Json.arr(Json.obj("name" -> "countryCode", "isEnabled" -> true), Json.obj("name" -> "addressLine5", "isEnabled" -> true))
-      )
-
-      val updateResult =
-        Http(resource(s"$serviceUrl")).method("POST").header("Content-Type", "application/json").postData(payload.toString()).asString
-
-      updateResult.code shouldBe 202
-
-      When("we retrieve the flags back we see they should be negated")
-
-      val updatedResult = Http(resource(s"$serviceUrl")).asString
-
-      updatedResult.code shouldBe 200
-      Json.parse(updatedResult.body) shouldBe Json.arr(Json.obj("name" -> "countryCode", "isEnabled" -> true),
-                                                       Json.obj("name" -> "addressLine5", "isEnabled" -> true)
-                                                      )
-
-    }
-  }
-}
diff --git a/it/test/UserInfoServiceISpec.scala b/it/test/UserInfoServiceISpec.scala
index a60bee3..d2aba4a 100644
--- a/it/test/UserInfoServiceISpec.scala
+++ b/it/test/UserInfoServiceISpec.scala
@@ -18,7 +18,6 @@ import java.nio.file.Paths
 import com.fasterxml.jackson.databind.ObjectMapper
 import com.github.fge.jsonschema.core.report.LogLevel
 import com.github.fge.jsonschema.main.JsonSchemaFactory
-import config.{FeatureSwitch, UserInfoFeatureSwitches}
 import domain._
 
 import java.time.LocalDate
@@ -29,21 +28,7 @@ import uk.gov.hmrc.auth.core._
 import uk.gov.hmrc.auth.core.retrieve._
 import uk.gov.hmrc.domain.Nino
 
-import scala.jdk.CollectionConverters.CollectionHasAsScala
-
 class UserInfoServiceISpec extends BaseFeatureISpec with AuthStub with ThirdPartyDelegatedAuthorityStub {
-
-  override def beforeAll(): Unit = {
-    super.beforeAll()
-    FeatureSwitch.enable(UserInfoFeatureSwitches.countryCode)
-    FeatureSwitch.enable(UserInfoFeatureSwitches.addressLine5)
-  }
-  override def afterAll(): Unit = {
-    super.afterAll()
-    FeatureSwitch.disable(UserInfoFeatureSwitches.countryCode)
-    FeatureSwitch.disable(UserInfoFeatureSwitches.addressLine5)
-  }
-
   val serviceUrl: String = resource("")
 
   val authorizationTokens = "AUTHORIZATION_TOKENS"
diff --git a/project/AppDependencies.scala b/project/AppDependencies.scala
index 55dfdff..c8b33e7 100644
--- a/project/AppDependencies.scala
+++ b/project/AppDependencies.scala
@@ -4,7 +4,7 @@ import sbt.*
 
 object AppDependencies {
 
-  private val bootstrapPlayVersion = "8.5.0"
+  private val bootstrapPlayVersion = "8.6.0"
 
   private val compile: Seq[ModuleID] = Seq(
     ws,
@@ -14,19 +14,9 @@ object AppDependencies {
   )
 
   private val test: Seq[ModuleID] = Seq(
-    "org.scalatest"             %% "scalatest"               % "3.2.17"             % Test,
-    "org.scalatestplus"         %% "scalacheck-1-17"         % "3.2.17.0"           % Test,
-    "org.scalatestplus.play"    %% "scalatestplus-play"      % "5.1.0"              % Test,
-    "org.playframework"         %% "play-test"               % PlayVersion.current  % Test,
-    "com.github.tomakehurst"     % "wiremock"                % "2.27.2"             % Test,
-    "uk.gov.hmrc"               %% "bootstrap-test-play-30"  % bootstrapPlayVersion % Test,
-    "org.pegdown"                % "pegdown"                 % "1.6.0"              % Test,
-    "org.jsoup"                  % "jsoup"                   % "1.17.2"             % Test,
-    "org.scalaj"                %% "scalaj-http"             % "2.4.2"              % Test,
-    "org.mockito"               %% "mockito-scala-scalatest" % "1.17.30"            % Test,
-    "org.scalacheck"            %% "scalacheck"              % "1.17.0"             % Test,
-    "com.github.java-json-tools" % "json-schema-validator"   % "2.2.14"             % Test,
-    "com.vladsch.flexmark"       % "flexmark-all"            % "0.64.0"             % Test
+    "org.scalaj"                 %% "scalaj-http"             % "2.4.2"    % Test,
+    "com.github.java-json-tools" % "json-schema-validator"    % "2.2.14"   % Test,
+    "uk.gov.hmrc"                %% "bootstrap-test-play-30"  % "8.6.0"    % Test
   )
 
   def apply(): Seq[ModuleID] = compile ++ test
diff --git a/project/build.properties b/project/build.properties
index d415199..4d5f78c 100644
--- a/project/build.properties
+++ b/project/build.properties
@@ -1 +1 @@
-sbt.version=1.9.7
\ No newline at end of file
+sbt.version=1.9.9
\ No newline at end of file
diff --git a/project/plugins.sbt b/project/plugins.sbt
index 2942aa1..a66ff56 100644
--- a/project/plugins.sbt
+++ b/project/plugins.sbt
@@ -2,9 +2,9 @@ resolvers += "HMRC-open-artefacts-maven" at "https://open.artefacts.tax.service.
 resolvers += Resolver.url("HMRC-open-artefacts-ivy", url("https://open.artefacts.tax.service.gov.uk/ivy2"))(Resolver.ivyStylePatterns)
 
 
-addSbtPlugin("uk.gov.hmrc"       % "sbt-auto-build"     % "3.20.0")
+addSbtPlugin("uk.gov.hmrc"       % "sbt-auto-build"     % "3.22.0")
 addSbtPlugin("uk.gov.hmrc"       % "sbt-distributables" % "2.5.0")
-addSbtPlugin("org.scoverage"     % "sbt-scoverage"      % "2.0.11")
-addSbtPlugin("org.playframework" % "sbt-plugin"         % "3.0.2")
+addSbtPlugin("org.scoverage"     % "sbt-scoverage"      % "2.0.12")
+addSbtPlugin("org.playframework" % "sbt-plugin"         % "3.0.3")
 addSbtPlugin("org.scalastyle"    %% "scalastyle-sbt-plugin"  % "1.0.0" exclude("org.scala-lang.modules", "scala-xml_2.12"))
 addSbtPlugin("org.scalameta"     % "sbt-scalafmt"            % "2.5.2")
\ No newline at end of file
diff --git a/public/api/conf/1.0/application.yaml b/public/api/conf/1.0/application.yaml
index 5151476..22fc7c9 100644
--- a/public/api/conf/1.0/application.yaml
+++ b/public/api/conf/1.0/application.yaml
@@ -2,15 +2,20 @@ openapi: 3.0.3
 info:
   title: User Information
   description: >-
-    Access to user information is controlled through scopes. Each access token (OAuth 2.0 Bearer Token) is associated with a set of scopes at login. When a request is made for user information, only information belonging to the provided scopes is returned. The information is returned in the form of claims, which sometimes are simple fields and sometimes objects that contain further fields.
-    Here is a list of supported scopes and the claims they contain. The details of each claim, including any contained fields, is documented further down.
-    * 'profile': given_name, middle_name, family_name, birthdate
-    * 'address': address
-    * 'email': email
-    * 'openid:hmrc-enrolments': hmrc_enrolments
-    * 'openid:government-gateway': government_gateway
-    * 'openid:mdtp': mdtp
-    * 'openid:gov-uk-identifiers': uk_gov_nino
+    Only the GET method is supported.<br><br>
+
+    Access to user information is controlled through scopes. Each access token (OAuth 2.0 Bearer Token) is associated with a set of scopes at login.<br><br> 
+    
+    When a request is made for user information, only information belonging to the provided scopes is returned. The information is returned in the form of claims, which sometimes are simple fields and sometimes objects that contain further fields.<br><br>
+    
+    Here is the supported scope list and the claims they contain. The details of each claim, including any contained fields, is documented further down.<br>
+    * 'profile': given_name, middle_name, family_name, birthdate<br>
+    * 'address': address<br>
+    * 'email': email<br>
+    * 'openid:hmrc-enrolments': hmrc_enrolments<br>
+    * 'openid:government-gateway': government_gateway<br>
+    * 'openid:mdtp': mdtp<br>
+    * 'openid:gov-uk-identifiers': uk_gov_nino<br>
   contact: {}
   version: '1.0'
 servers:
@@ -60,7 +65,7 @@ paths:
                         value: '174371121'
                       state: activated
                     government_gateway:
-                      user_id: '019283'
+                      user_id: '019283739713'
                       roles:
                       - User
                       affinity_group: Individual
@@ -98,7 +103,7 @@ paths:
                         value: '174371121'
                       state: activated
                     government_gateway:
-                      user_id: '019283'
+                      user_id: '019283739713'
                       roles:
                       - User
                       affinity_group: Individual
@@ -161,7 +166,7 @@ components:
       properties:
         formatted:
           type: string
-          description: End-user's mailing address, formatted for display or use on a mailing label.
+          description: End-User's mailing address, formatted for display or use on a mailing label.
           example: >-
             221B Baker Street
 
@@ -172,15 +177,15 @@ components:
             Great Britain
         postal_code:
           type: string
-          description: End-user's Zip code or postal code.
+          description: End-User's Zip code or postal code.
           example: NW1 9NT
         country:
           type: string
-          description: End-user's country name.
+          description: End-User's country name.
           example: Great Britain
         country_code:
           type: string
-          description: ISO 3166 Alpha-2-code of a given country
+          description: Take the first 2 chars to obtain the ISO 3166 Alpha-2-code of a given country
           example: GB
     GovernmentGateway:
       title: GovernmentGateway
@@ -241,14 +246,14 @@ components:
           type: array
           items:
             $ref: '#/components/schemas/Identifier'
-          description: End-user's identifiers associated to this HMRC service.
+          description: End-User's identifiers associated to this HMRC service.
           example:
           - key: UTR
             value: '174371121'
         state:
           allOf:
           - $ref: '#/components/schemas/State'
-          - description: End-user's HMRC enrolment status.
+          - description: End-User's HMRC enrolment status.
     Identifier:
       title: Identifier
       required:
@@ -274,7 +279,7 @@ components:
           type: string
           description: Session id
           example: '2012345'
-      description: Mdtp information based on government gateway input
+      description: MDTP platform information on the End-User’s session for auditing & log correlation purposes
     State:
       title: State
       enum:
@@ -285,14 +290,14 @@ components:
       - pending
       - givenToAgent
       type: string
-      description: End-user's HMRC enrolment status.
+      description: End-User's HMRC enrolment status.
     Userinforesponse:
       title: Userinforesponse
       type: object
       properties:
         given_name:
           type: string
-          description: End-user's first name.
+          description: End-User's first name.
           example: Thomas
         middle_name:
           type: string
@@ -300,7 +305,7 @@ components:
           example: A.
         family_name:
           type: string
-          description: End-user's last name.
+          description: End-User's last name.
           example: Delgado
         email:
           type: string
@@ -320,7 +325,7 @@ components:
           type: array
           items:
             $ref: '#/components/schemas/HmrcEnrolment'
-          description: End-user's HMRC enrolments.
+          description: End-User's HMRC enrolments.
         mdtp:
           allOf:
           - $ref: '#/components/schemas/Mdtp'
diff --git a/test/connectors/ThirdPartyDelegatedAuthorityConnectorSpec.scala b/test/connectors/ThirdPartyDelegatedAuthorityConnectorSpec.scala
index d00af4b..3384265 100644
--- a/test/connectors/ThirdPartyDelegatedAuthorityConnectorSpec.scala
+++ b/test/connectors/ThirdPartyDelegatedAuthorityConnectorSpec.scala
@@ -23,7 +23,8 @@ import com.github.tomakehurst.wiremock.core.WireMockConfiguration._
 import org.scalatest.BeforeAndAfterEach
 import org.scalatestplus.play.guice.GuiceOneAppPerSuite
 import config.AppContext
-import org.mockito.scalatest.MockitoSugar
+import org.mockito.Mockito.when
+import org.scalatestplus.mockito.MockitoSugar
 import uk.gov.hmrc.http.{HeaderCarrier, HttpClient}
 
 import scala.concurrent.ExecutionContext.Implicits.global
diff --git a/test/controllers/UserInfoControllerSpec.scala b/test/controllers/UserInfoControllerSpec.scala
index 8fa24d7..5966e6a 100644
--- a/test/controllers/UserInfoControllerSpec.scala
+++ b/test/controllers/UserInfoControllerSpec.scala
@@ -19,11 +19,12 @@ package controllers
 import config.AppContext
 import domain.{Address, GovernmentGatewayDetails, UserInfo}
 import org.apache.pekko.actor.ActorSystem
+import org.mockito.ArgumentMatchers.{any, eq => eqTo}
 
 import java.time.LocalDate
 import org.mockito.BDDMockito.given
 import org.scalatest.concurrent.ScalaFutures
-import org.mockito.scalatest.MockitoSugar
+import org.scalatestplus.mockito.MockitoSugar
 import play.api.libs.json.Json
 import play.api.mvc.ControllerComponents
 import play.api.test.FakeRequest
diff --git a/test/controllers/testOnly/FeatureSwitchControllerSpec.scala b/test/controllers/testOnly/FeatureSwitchControllerSpec.scala
deleted file mode 100644
index c2190e0..0000000
--- a/test/controllers/testOnly/FeatureSwitchControllerSpec.scala
+++ /dev/null
@@ -1,76 +0,0 @@
-/*
- * Copyright 2024 HM Revenue & Customs
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package controllers.testOnly
-
-import org.scalatest.concurrent.ScalaFutures
-import play.api.libs.json._
-import play.api.mvc.{ControllerComponents, Request, Result}
-import play.api.test.FakeRequest
-import config.{FeatureSwitch, UserInfoFeatureSwitches}
-import org.apache.pekko.actor.ActorSystem
-import testSupport.UnitSpec
-
-import scala.concurrent.ExecutionContext
-
-class FeatureSwitchControllerSpec(implicit val cc: ControllerComponents, val ex: ExecutionContext) extends UnitSpec with ScalaFutures {
-
-  implicit val actorSystem: ActorSystem = ActorSystem("test")
-
-  trait Setup {
-    def featuresList(countryCodeEnabled: Boolean = false, addressLine5Enabled: Boolean = false): JsValue = Json.arr(
-      Json.obj("name" -> "countryCode", "isEnabled"  -> countryCodeEnabled),
-      Json.obj("name" -> "addressLine5", "isEnabled" -> addressLine5Enabled)
-    )
-
-    val controller = new FeatureSwitchController
-    UserInfoFeatureSwitches.allSwitches.map(FeatureSwitch.disable(_))
-  }
-
-  "FeatureSwitchController" should {
-    "return a list of switches" in new Setup {
-      val expectedBody = featuresList()
-
-      val result = await(controller.getFlags()(FakeRequest()))
-      status(result)     shouldBe 200
-      jsonBodyOf(result) shouldBe expectedBody
-    }
-
-    "enable the country code" in new Setup {
-      val expectedBody = featuresList(countryCodeEnabled = true)
-
-      val changeRequest = Json.obj("featureSwitches" -> Json.arr(Json.obj("name" -> "countryCode", "isEnabled" -> true)))
-      val updateRequest: Request[JsValue] = FakeRequest().withBody(changeRequest)
-
-      val result: Result = await(controller.setFlags()(updateRequest))
-
-      status(result)     shouldBe 202
-      jsonBodyOf(result) shouldBe expectedBody
-    }
-
-    "disable the address line 5" in new Setup {
-      val expectedBody = featuresList()
-
-      val changeRequest = Json.obj("featureSwitches" -> Json.arr(Json.obj("name" -> "addressLine5", "isEnabled" -> false)))
-      val updateRequest: Request[JsValue] = FakeRequest().withBody(changeRequest)
-
-      val result: Result = await(controller.setFlags()(updateRequest))
-
-      status(result)     shouldBe 202
-      jsonBodyOf(result) shouldBe expectedBody
-    }
-  }
-}
diff --git a/test/data/UserInfoGeneratorSpec.scala b/test/data/UserInfoGeneratorSpec.scala
index 26e95bb..e645fec 100644
--- a/test/data/UserInfoGeneratorSpec.scala
+++ b/test/data/UserInfoGeneratorSpec.scala
@@ -18,7 +18,6 @@ package data
 
 import java.time.LocalDate
 import org.scalatest.BeforeAndAfterEach
-import config.{FeatureSwitch, UserInfoFeatureSwitches}
 import org.scalatest.matchers.should.Matchers
 import org.scalatest.wordspec.AnyWordSpec
 
@@ -27,16 +26,6 @@ class UserInfoGeneratorSpec extends AnyWordSpec with Matchers with BeforeAndAfte
   private val from = LocalDate.of(1939, 12, 27)
   private val until = LocalDate.of(1998, 12, 29)
 
-  override protected def beforeEach(): Unit = {
-    FeatureSwitch.enable(UserInfoFeatureSwitches.countryCode)
-    FeatureSwitch.enable(UserInfoFeatureSwitches.addressLine5)
-  }
-
-  override protected def afterEach(): Unit = {
-    FeatureSwitch.disable(UserInfoFeatureSwitches.countryCode)
-    FeatureSwitch.disable(UserInfoFeatureSwitches.addressLine5)
-  }
-
   "userInfo" should {
     "generate an OpenID Connect compliant UserInfo response v1.0" in {
       val userInfo = TestUserInfoGenerator.userInfoV1_0()
@@ -49,18 +38,6 @@ class UserInfoGeneratorSpec extends AnyWordSpec with Matchers with BeforeAndAfte
       userInfo.government_gateway.get.profile_uri       should not be defined
       userInfo.government_gateway.get.group_profile_uri should not be defined
     }
-
-    "generate an OpenID Connect compliant UserInfo response without country code when feature flag is disabled" in {
-      FeatureSwitch.disable(UserInfoFeatureSwitches.countryCode)
-      val userInfo = TestUserInfoGenerator.userInfoV1_0()
-      userInfo.address shouldBe TestUserInfoGenerator.addressWithToggleableFeatures(isAddressLine5 = true, isCountryCode = false)
-    }
-
-    "generate an OpenID Connect UserInfo response without addressLine5 when feature flag is disabled" in {
-      FeatureSwitch.disable(UserInfoFeatureSwitches.addressLine5)
-      val userInfo = TestUserInfoGenerator.userInfoV1_0()
-      userInfo.address shouldBe TestUserInfoGenerator.addressWithToggleableFeatures(isAddressLine5 = false, isCountryCode = true)
-    }
   }
 
   private def assertValidDob(dob: LocalDate): Unit =
diff --git a/test/services/UserInfoServiceSpec.scala b/test/services/UserInfoServiceSpec.scala
index b52abd4..13f90a0 100644
--- a/test/services/UserInfoServiceSpec.scala
+++ b/test/services/UserInfoServiceSpec.scala
@@ -20,9 +20,11 @@ import connectors.{AuthConnector, AuthConnectorV1, ThirdPartyDelegatedAuthorityC
 import controllers.Version_1_0
 import data.UserInfoGenerator
 import domain._
+import org.mockito.ArgumentMatchers.{any, eq => eqTo}
 import org.mockito.BDDMockito.given
+import org.mockito.Mockito.{never, verify, when}
 import org.scalatest.concurrent.ScalaFutures
-import org.mockito.scalatest.MockitoSugar
+import org.scalatestplus.mockito.MockitoSugar
 import testSupport.UnitSpec
 import uk.gov.hmrc.auth.core.retrieve.{ItmpAddress, ItmpName}
 import uk.gov.hmrc.auth.core.{Enrolment, EnrolmentIdentifier, Enrolments}
diff --git a/test/services/UserInfoTransformerSpec.scala b/test/services/UserInfoTransformerSpec.scala
index 534e7e1..453ebcd 100644
--- a/test/services/UserInfoTransformerSpec.scala
+++ b/test/services/UserInfoTransformerSpec.scala
@@ -16,11 +16,11 @@
 
 package services
 
-import config.{FeatureSwitch, UserInfoFeatureSwitches}
 import domain._
+
 import java.time.LocalDate
 import org.scalatest.BeforeAndAfterEach
-import org.mockito.scalatest.MockitoSugar
+import org.scalatestplus.mockito.MockitoSugar
 import testSupport.UnitSpec
 import uk.gov.hmrc.auth.core.retrieve.{GatewayInformation, ItmpAddress, ItmpName, MdtpInformation}
 import uk.gov.hmrc.auth.core.{Enrolment, EnrolmentIdentifier, Enrolments}
@@ -94,16 +94,6 @@ class UserInfoTransformerSpec extends UnitSpec with MockitoSugar with BeforeAndA
     Some(mdtp)
   )
 
-  override protected def beforeEach() = {
-    FeatureSwitch.enable(UserInfoFeatureSwitches.countryCode)
-    FeatureSwitch.enable(UserInfoFeatureSwitches.addressLine5)
-  }
-
-  override protected def afterEach() = {
-    FeatureSwitch.disable(UserInfoFeatureSwitches.countryCode)
-    FeatureSwitch.disable(UserInfoFeatureSwitches.addressLine5)
-  }
-
   trait Setup {
     implicit val hc: HeaderCarrier = HeaderCarrier()
 
@@ -252,17 +242,60 @@ class UserInfoTransformerSpec extends UnitSpec with MockitoSugar with BeforeAndA
       result shouldBe userInfoMissingPostCode
     }
 
-    "not return country code when feature flag is off" in new Setup {
+    "return object containing country code if country code is defined in DES response" in new Setup {
 
-      FeatureSwitch.disable(UserInfoFeatureSwitches.countryCode)
       val scopes =
         Set("address", "profile", "openid:gov-uk-identifiers", "openid:hmrc-enrolments", "openid:government-gateway", "email", "openid:mdtp")
       val result = await(transformer.transform(scopes, Some(authority), Some(desUserInfo), Some(enrolments), Some(userDetails)))
 
-      val userInfoMissingCountryCode = userInfo.copy(address =
-        Some(userAddress.copy(formatted = "1 Station Road\nTown Centre\nLondon\nEngland\nUK\nNW1 6XE\nUnited Kingdom", country_code = None))
+      result.address                    should be(defined)
+      result.address.get.country_code shouldBe desUserInfo.address.countryCode
+    }
+
+    "return object not containing country code if country code isn't defined in DES response" in new Setup {
+
+      val scopes =
+        Set("address", "profile", "openid:gov-uk-identifiers", "openid:hmrc-enrolments", "openid:government-gateway", "email", "openid:mdtp")
+      val result = await(
+        transformer.transform(scopes,
+                              Some(authority),
+                              Some(desUserInfo.copy(address = desAddress.copy(countryCode = None))),
+                              Some(enrolments),
+                              Some(userDetails)
+                             )
       )
-      result shouldBe userInfoMissingCountryCode
+
+      result.address                    should be(defined)
+      result.address.get.country_code shouldBe None
+    }
+
+    "return object containing line 5 if line 5 is defined in DES response" in new Setup {
+
+      val scopes =
+        Set("address", "profile", "openid:gov-uk-identifiers", "openid:hmrc-enrolments", "openid:government-gateway", "email", "openid:mdtp")
+      val result = await(transformer.transform(scopes, Some(authority), Some(desUserInfo), Some(enrolments), Some(userDetails)))
+
+      val userInfoWithFormattedAddress =
+        userInfo.copy(address = Some(userAddress.copy(formatted = "1 Station Road\nTown Centre\nLondon\nEngland\nUK\nNW1 6XE\nUnited Kingdom")))
+      result shouldBe userInfoWithFormattedAddress
+    }
+
+    "return object not containing line 5 if line 5 isn't defined in DES response" in new Setup {
+
+      val scopes =
+        Set("address", "profile", "openid:gov-uk-identifiers", "openid:hmrc-enrolments", "openid:government-gateway", "email", "openid:mdtp")
+      val result = await(
+        transformer.transform(scopes,
+                              Some(authority),
+                              Some(desUserInfo.copy(address = desAddress.copy(line5 = None))),
+                              Some(enrolments),
+                              Some(userDetails)
+                             )
+      )
+
+      val userInfoWithFormattedAddress =
+        userInfo.copy(address = Some(userAddress.copy(formatted = "1 Station Road\nTown Centre\nLondon\nEngland\nNW1 6XE\nUnited Kingdom")))
+      result shouldBe userInfoWithFormattedAddress
     }
   }
 }