diff --git a/controllers/api/payment.py b/controllers/api/payment.py
index 5b120b4..19b84bf 100644
--- a/controllers/api/payment.py
+++ b/controllers/api/payment.py
@@ -40,6 +40,7 @@ from quart import current_app
 
 # My async utils:
 from utils_v2.string import json
+from utils_v2.string import regex
 from utils_v2.date_time import date_time
 from utils_v2.database.async_mysql_v2 import AsyncMySQL
 from utils_v2.database.async_mongo_v2 import AsyncMongo, AsyncMongoStorage
@@ -216,12 +217,20 @@ class PaymentController:
         # Make the payment request:
         client_response = await client.request_payment(
             amount = payment_request.amount,
-            party_a = payment_request.customerNo,
+            party_a = regex.replace(
+                text = payment_request.customerNo,
+                pattern = r"[^0-9]",
+                substitute_text = ""
+            ) if isinstance(payment_request.customerNo, str) else payment_request.customerNo,
             type = "CustomerPayBillOnline",
             reference = payment_request.reference,
             description = payment_request.description,
             callback_url = callback_url,
-            payer_no = payment_request.payerNo,
+            payer_no = regex.replace(
+                text = payment_request.payerNo,
+                pattern = r"[^0-9]",
+                substitute_text = ""
+            ) if isinstance(payment_request.payerNo, str) else payment_request.payerNo,
             party_b = auth_token.auth["businessShortCode"]
         )