diff --git a/apps/edr-payment-api/src/modules/cbe-bill/cbe-bill.service.ts b/apps/edr-payment-api/src/modules/cbe-bill/cbe-bill.service.ts
index 580e6283d..d7f9eb8d6 100644
--- a/apps/edr-payment-api/src/modules/cbe-bill/cbe-bill.service.ts
+++ b/apps/edr-payment-api/src/modules/cbe-bill/cbe-bill.service.ts
@@ -272,10 +272,15 @@ export class CbeBillService {
         );
       }
 
+      // Validate against the freshly-quoted amount — the same figure bill-query
+      // just showed the payer — not the intent's amount asserted at creation,
+      // which can go stale when the domain re-prices the invoice. Fallback to
+      // the intent amount only for domain builds that return no current amount.
+      const expectedAmount = billQuery.currentAmountMinor ?? intent.amountMinor;
       const amount = Number(dto.Amount);
       if (
         !Number.isFinite(amount) ||
-        !amountsMatchToTheCent(amount, intent.amountMinor)
+        !amountsMatchToTheCent(amount, expectedAmount)
       ) {
         throw new CbeBillError("Amount mismatch", "BUSINESS");
       }