Description

The payment failed because the card number entered is incorrect. This error occurs when the customer mistyped the card number, the format is invalid, a test or dummy number was used, or the card is no longer active.

Recommended Customer Message

Your payment could not be processed because the card number is incorrect. Please verify your card number and try again.

Root Cause

• Typographical errors: The customer mistyped the card number.
• Invalid card format: The number does not conform to known BIN patterns or is too short/long.
• Test or dummy numbers: Placeholder or mock card numbers were used in a live transaction environment.
• Expired or deactivated card: In rare cases, cards no longer active may return as invalid.

Troubleshooting and Solutions

• Inform the customer that the card number they entered is incorrect.
• Ask the customer to double-check the number on their card and re-enter it carefully.
• Ask the customer to use a different card if the issue persists.
• Use account updater wherever applicable to automatically update the card number and avoid card expired failures.