Root Cause

• Incorrect billing address: The customer entered an address that does not match the bank's records.

• Typographical errors: Mistakes in street address, ZIP code, or other address fields.

• Outdated bank records: The bank has outdated address information, causing validation failures.

• Regional differences: Address formats differing across countries can trigger AVS mismatches.

Troubleshooting and Solutions

• Inform the customer that their transaction failed due to an address mismatch.

• Ask the customer to:

  • Double-check and update their billing address details.

  • Ensure that the entered address matches the one registered with their card issuer.

• Retry the transaction after the correct billing address has been entered.

• Work with your payment gateway to see if you need to relax the validation to balance out on the failures without adding further risk.

• If the issue persists, recommend using an alternative payment method.