Update VerifyPaymentView to mark payment as paid and set payment method upon successful transfer

billing/views.py

@@ -223,6 +223,10 @@ class VerifyPaymentView(StaffEditorPermissionMixin, generics.UpdateAPIView):
         if not response.json().get("success"):
             return mib_resp["success"]
         else:
+            payment.paid = True
+            payment.paid_at = timezone.now()
+            payment.method = "TRANSFER"
+            payment.save()
             return True