diff --git a/app/controllers/bill-runs.controller.js b/app/controllers/bill-runs.controller.js
index e10f2ca9cd..484e57e374 100644
--- a/app/controllers/bill-runs.controller.js
+++ b/app/controllers/bill-runs.controller.js
@@ -77,7 +77,7 @@ async function index (request, h) {
 async function matchDetails (request, h) {
   const { id: billRunId, licenceId, reviewChargeElementId } = request.params
 
-  const pageData = await MatchDetailsService.go(billRunId, licenceId, reviewChargeElementId)
+  const pageData = await MatchDetailsService.go(billRunId, licenceId, reviewChargeElementId, request.yar)
 
   return h.view('bill-runs/match-details.njk', {
     pageTitle: 'View match details',
@@ -124,7 +124,7 @@ async function send (request, h) {
 async function submitAmendedBillableReturns (request, h) {
   const { id: billRunId, licenceId, reviewChargeElementId } = request.params
 
-  const pageData = await SubmitAmendedBillableReturnsService.go(billRunId, licenceId, reviewChargeElementId, request.payload)
+  const pageData = await SubmitAmendedBillableReturnsService.go(billRunId, licenceId, reviewChargeElementId, request.payload, request.yar)
 
   if (pageData.error) {
     return h.view('bill-runs/amend-billable-returns.njk', pageData)
diff --git a/app/presenters/bill-runs/two-part-tariff/match-details.presenter.js b/app/presenters/bill-runs/two-part-tariff/match-details.presenter.js
index 465f997c7b..8bf9ece2e6 100644
--- a/app/presenters/bill-runs/two-part-tariff/match-details.presenter.js
+++ b/app/presenters/bill-runs/two-part-tariff/match-details.presenter.js
@@ -38,8 +38,7 @@ function go (billRun, reviewChargeElement, licenceId) {
       authorisedVolume: reviewChargeElement.chargeElement.authorisedAnnualQuantity,
       issues: reviewChargeElement.issues?.length > 0 ? reviewChargeElement.issues.split(', ') : []
     },
-    matchedReturns: _matchedReturns(reviewChargeElement.reviewReturns),
-    showBanner: reviewChargeElement.allocated !== reviewChargeElement.calculated
+    matchedReturns: _matchedReturns(reviewChargeElement.reviewReturns)
   }
 }
 
diff --git a/app/services/bill-runs/two-part-tariff/match-details.service.js b/app/services/bill-runs/two-part-tariff/match-details.service.js
index 7e5e8accb1..6d70f3b212 100644
--- a/app/services/bill-runs/two-part-tariff/match-details.service.js
+++ b/app/services/bill-runs/two-part-tariff/match-details.service.js
@@ -15,15 +15,20 @@ const MatchDetailsPresenter = require('../../../presenters/bill-runs/two-part-ta
  * @param {String} billRunId - The UUID for the bill run
  * @param {String} licenceId - The UUID of the licence that is being reviewed
  * @param {String} reviewChargeElementId - The UUID of the review charge element being viewed
+ * @param {Object} yar - The Hapi `request.yar` session manager passed on by the controller
  *
  * @returns {Promise<Object>} the 'pageData' needed to view the match details of an individual charge
  */
-async function go (billRunId, licenceId, reviewChargeElementId) {
+async function go (billRunId, licenceId, reviewChargeElementId, yar) {
   const { billRun, reviewChargeElement } = await FetchMatchDetailsService.go(billRunId, reviewChargeElementId)
 
+  const [bannerMessage] = yar.flash('banner')
   const pageData = MatchDetailsPresenter.go(billRun, reviewChargeElement, licenceId)
 
-  return pageData
+  return {
+    bannerMessage,
+    ...pageData
+  }
 }
 
 module.exports = {
diff --git a/app/services/bill-runs/two-part-tariff/submit-amended-billable-returns.service.js b/app/services/bill-runs/two-part-tariff/submit-amended-billable-returns.service.js
index df3c2c95be..12d213bb19 100644
--- a/app/services/bill-runs/two-part-tariff/submit-amended-billable-returns.service.js
+++ b/app/services/bill-runs/two-part-tariff/submit-amended-billable-returns.service.js
@@ -17,14 +17,16 @@ const ReviewChargeElementModel = require('../../../models/review-charge-element.
  * @param {String} licenceId - The UUID of the licence that is being reviewed
  * @param {String} reviewChargeElementId - The UUID of the review charge element being updated
  * @param {Object} payload - The submitted form data
+ * @param {Object} yar - The Hapi `request.yar` session manager passed on by the controller
  *
  * @returns {Promise<Object>} The updated value for the billable returns
  */
-async function go (billRunId, licenceId, reviewChargeElementId, payload) {
+async function go (billRunId, licenceId, reviewChargeElementId, payload, yar) {
   const validationResult = _validate(payload)
 
   if (!validationResult) {
     await _persistAmendedBillableReturns(reviewChargeElementId, payload)
+    yar.flash('banner', 'The billable returns for this licence have been updated')
 
     return { error: null }
   }
diff --git a/app/views/bill-runs/match-details.njk b/app/views/bill-runs/match-details.njk
index c25f08c9aa..f5bf041af2 100644
--- a/app/views/bill-runs/match-details.njk
+++ b/app/views/bill-runs/match-details.njk
@@ -16,10 +16,11 @@
 {% endblock %}
 
 {% block content %}
-  {% if showBanner %}
+  {# Billable returns ammended banner #}
+  {% if bannerMessage %}
     {{ govukNotificationBanner({
-      text: "The billable returns for this licence have been updated",
-      titleText: "Element updated"
+      titleText: 'Element updated',
+      text: bannerMessage
     }) }}
   {% endif %}
 
diff --git a/test/presenters/bill-runs/two-part-tariff/match-details.presenter.test.js b/test/presenters/bill-runs/two-part-tariff/match-details.presenter.test.js
index b7ba8f809d..371f527c9d 100644
--- a/test/presenters/bill-runs/two-part-tariff/match-details.presenter.test.js
+++ b/test/presenters/bill-runs/two-part-tariff/match-details.presenter.test.js
@@ -24,7 +24,6 @@ describe('Match Details presenter', () => {
         financialYear: '2022 to 2023',
         chargePeriod: '1 April 2022 to 5 June 2022',
         licenceId: '5aa8e752-1a5c-4b01-9112-d92a543b70d1',
-        showBanner: true,
         chargeElement: {
           chargeElementId: 'b4d70c89-de1b-4f68-a47f-832b338ac044',
           description: 'Trickle Irrigation - Direct',
diff --git a/test/services/bill-runs/two-part-tariff/match-details.service.test.js b/test/services/bill-runs/two-part-tariff/match-details.service.test.js
index 621bb1092e..62725ee02e 100644
--- a/test/services/bill-runs/two-part-tariff/match-details.service.test.js
+++ b/test/services/bill-runs/two-part-tariff/match-details.service.test.js
@@ -10,7 +10,6 @@ const { expect } = Code
 
 // Things we need to stub
 const FetchMatchDetailsService = require('../../../../app/services/bill-runs/two-part-tariff/fetch-match-details.service.js')
-const MatchDetailsPresenter = require('../../../../app/presenters/bill-runs/two-part-tariff/match-details.presenter.js')
 
 // Thing under test
 const MatchDetailsService = require('../../../../app/services/bill-runs/two-part-tariff/match-details.service.js')
@@ -25,21 +24,93 @@ describe('Match Details Service', () => {
     const billRunId = 'cc4bbb18-0d6a-4254-ac2c-7409de814d7e'
     const licenceId = '9a8a148d-b71e-463c-bea8-bc5e0a5d95e2'
 
+    let yarStub
+
     beforeEach(() => {
       Sinon.stub(FetchMatchDetailsService, 'go').resolves({
-        billRun: 'bill run data',
-        reviewChargeElement: 'charge element details'
+        billRun: _billRun(),
+        reviewChargeElement: _reviewChargeElementData()
       })
 
-      Sinon.stub(MatchDetailsPresenter, 'go').resolves('page data')
+      yarStub = { flash: Sinon.stub().returns(['The billable returns for this licence have been updated']) }
     })
 
     it('will fetch the charge element data and return it once formatted by the presenter', async () => {
-      const result = await MatchDetailsService.go(billRunId, licenceId, reviewChargeElementId)
+      const result = await MatchDetailsService.go(billRunId, licenceId, reviewChargeElementId, yarStub)
+
+      expect(result.bannerMessage).to.equal('The billable returns for this licence have been updated')
+
+      // NOTE: The service mainly just regurgitates what the MatchDetailsPresenter returns. So, we don't diligently
+      // check each property of the result because we know this will have been covered by the MatchDetailsPresenter
 
       expect(FetchMatchDetailsService.go.called).to.be.true()
-      expect(MatchDetailsPresenter.go.called).to.be.true()
-      expect(result).to.equal('page data')
+      expect(result.billRunId).to.equal('6620135b-0ecf-4fd4-924e-371f950c0526')
+      expect(result.licenceId).to.equal('9a8a148d-b71e-463c-bea8-bc5e0a5d95e2')
+      expect(result.chargeElement.chargeElementId).to.equal('b4d70c89-de1b-4f68-a47f-832b338ac044')
+      expect(result.chargeElement.billableVolume).to.equal(0)
     })
   })
 })
+
+function _billRun () {
+  return {
+    id: '6620135b-0ecf-4fd4-924e-371f950c0526',
+    fromFinancialYearEnding: 2023,
+    toFinancialYearEnding: 2023
+  }
+}
+
+function _reviewChargeElementData () {
+  return {
+    id: 'b4d70c89-de1b-4f68-a47f-832b338ac044',
+    reviewChargeReferenceId: '9e5d87d7-073e-420e-b12d-73ca220dd8ef',
+    chargeElementId: 'b345f1f1-496b-4049-a647-6bcd123dcf68',
+    allocated: 10,
+    amendedAllocated: 0,
+    chargeDatesOverlap: false,
+    issues: null,
+    status: 'ready',
+    createdAt: new Date('2024-04-02'),
+    updatedAt: new Date('2024-04-02'),
+    reviewReturns: [
+      {
+        id: 'c4cdbfa9-4528-4776-b62f-fa667b797717',
+        reviewLicenceId: '674ffa02-51be-4caa-b25e-cc1fea1ac057',
+        returnId: 'v1:1:01/57/14/1646:15584914:2022-04-01:2023-03-31',
+        returnReference: '10031343',
+        quantity: 0,
+        allocated: 0,
+        underQuery: false,
+        returnStatus: 'completed',
+        nilReturn: false,
+        abstractionOutsidePeriod: false,
+        receivedDate: new Date('2022-06-03'),
+        dueDate: new Date('2022-06-03'),
+        purposes: [{
+          tertiary: { code: '400', description: 'Spray Irrigation - Direct' }
+        }],
+        description: 'Lands at Mosshayne Farm, Exeter & Broadclyst',
+        startDate: new Date('2022-04-01'),
+        endDate: new Date('2022-05-06'),
+        issues: null,
+        createdAt: new Date('2024-04-02'),
+        updatedAt: new Date('2024-04-02')
+      }
+    ],
+    chargeElement: {
+      description: 'Trickle Irrigation - Direct',
+      abstractionPeriodStartDay: 1,
+      abstractionPeriodStartMonth: 4,
+      abstractionPeriodEndDay: 31,
+      abstractionPeriodEndMonth: 3,
+      authorisedAnnualQuantity: 200
+    },
+    reviewChargeReference: {
+      id: '9e5d87d7-073e-420e-b12d-73ca220dd8ef',
+      reviewChargeVersion: {
+        chargePeriodStartDate: new Date('2022-04-01'),
+        chargePeriodEndDate: new Date('2022-06-05')
+      }
+    }
+  }
+}
diff --git a/test/services/bill-runs/two-part-tariff/submit-amended-billable-returns.service.test.js b/test/services/bill-runs/two-part-tariff/submit-amended-billable-returns.service.test.js
index 4ebcfe2ffc..0d93d45cd8 100644
--- a/test/services/bill-runs/two-part-tariff/submit-amended-billable-returns.service.test.js
+++ b/test/services/bill-runs/two-part-tariff/submit-amended-billable-returns.service.test.js
@@ -25,10 +25,13 @@ describe('Submit Amended Billable Returns Service', () => {
   const licenceId = '9a8a148d-b71e-463c-bea8-bc5e0a5d95e2'
   let payload
   let reviewChargeElement
+  let yarStub
 
   beforeEach(async () => {
     await DatabaseSupport.clean()
 
+    yarStub = { flash: Sinon.stub() }
+
     reviewChargeElement = await ReviewChargeElementHelper.add()
   })
 
@@ -46,12 +49,21 @@ describe('Submit Amended Billable Returns Service', () => {
       })
 
       it('saves the submitted option', async () => {
-        await SubmitAmendedBillableReturnsService.go(billRunId, licenceId, reviewChargeElement.id, payload)
+        await SubmitAmendedBillableReturnsService.go(billRunId, licenceId, reviewChargeElement.id, payload, yarStub)
 
         const reviewChargeElementData = await _fetchReviewChargeElement(reviewChargeElement.id)
 
         expect(reviewChargeElementData.amendedAllocated).to.equal(10)
       })
+
+      it("sets the banner message to 'The billable returns for this licence have been updated'", async () => {
+        await SubmitAmendedBillableReturnsService.go(billRunId, licenceId, reviewChargeElement.id, payload, yarStub)
+
+        const [flashType, bannerMessage] = yarStub.flash.args[0]
+
+        expect(flashType).to.equal('banner')
+        expect(bannerMessage).to.equal('The billable returns for this licence have been updated')
+      })
     })
 
     describe('with a valid payload for customQuantity', () => {
@@ -64,12 +76,21 @@ describe('Submit Amended Billable Returns Service', () => {
       })
 
       it('saves the submitted value', async () => {
-        await SubmitAmendedBillableReturnsService.go(billRunId, licenceId, reviewChargeElement.id, payload)
+        await SubmitAmendedBillableReturnsService.go(billRunId, licenceId, reviewChargeElement.id, payload, yarStub)
 
         const reviewChargeElementData = await _fetchReviewChargeElement(reviewChargeElement.id)
 
         expect(reviewChargeElementData.amendedAllocated).to.equal(20)
       })
+
+      it("sets the banner message to 'The billable returns for this licence have been updated'", async () => {
+        await SubmitAmendedBillableReturnsService.go(billRunId, licenceId, reviewChargeElement.id, payload, yarStub)
+
+        const [flashType, bannerMessage] = yarStub.flash.args[0]
+
+        expect(flashType).to.equal('banner')
+        expect(bannerMessage).to.equal('The billable returns for this licence have been updated')
+      })
     })
 
     describe('with an invalid payload', () => {
@@ -85,7 +106,7 @@ describe('Submit Amended Billable Returns Service', () => {
         })
 
         it('returns the page data for the view', async () => {
-          const result = await SubmitAmendedBillableReturnsService.go(billRunId, licenceId, reviewChargeElement.id, payload)
+          const result = await SubmitAmendedBillableReturnsService.go(billRunId, licenceId, reviewChargeElement.id, payload, yarStub)
 
           expect(result).to.equal({
             activeNavBar: 'search',
@@ -110,7 +131,7 @@ describe('Submit Amended Billable Returns Service', () => {
         })
 
         it('returns page data with an error for the radio form element', async () => {
-          const result = await SubmitAmendedBillableReturnsService.go(billRunId, licenceId, reviewChargeElement.id, payload)
+          const result = await SubmitAmendedBillableReturnsService.go(billRunId, licenceId, reviewChargeElement.id, payload, yarStub)
 
           expect(result.error).to.equal({
             message: 'Select the billable quantity',
@@ -130,7 +151,7 @@ describe('Submit Amended Billable Returns Service', () => {
         })
 
         it('returns the page data for the view', async () => {
-          const result = await SubmitAmendedBillableReturnsService.go(billRunId, licenceId, reviewChargeElement.id, payload)
+          const result = await SubmitAmendedBillableReturnsService.go(billRunId, licenceId, reviewChargeElement.id, payload, yarStub)
 
           expect(result).to.equal({
             activeNavBar: 'search',
@@ -155,7 +176,7 @@ describe('Submit Amended Billable Returns Service', () => {
         })
 
         it('returns page data with an error for the custom quantity input form element', async () => {
-          const result = await SubmitAmendedBillableReturnsService.go(billRunId, licenceId, reviewChargeElement.id, payload)
+          const result = await SubmitAmendedBillableReturnsService.go(billRunId, licenceId, reviewChargeElement.id, payload, yarStub)
 
           expect(result.error).to.equal({
             message: 'The quantity must be a number',