Root Cause

• Incorrect CVV/CVC entered: The customer provided a wrong Card Security Code that does not match the code registered with the card issuer.
• Typographical errors: The CVV/CVC code was mistyped or incomplete.
• Fraud prevention measures: The card issuer flagged the transaction due to repeated incorrect CVV/CVC attempts.

Troubleshooting and Solutions

• Ask the customer to verify and re-enter the correct CVV/CVC code as printed on the card.
• Ensure the CVV/CVC code is entered without any extra spaces or invalid characters.
• Remove and re-add the saved card to update the CVV/CVC.
• Retry the transaction after correcting the CVV/CVC code.
• Recommend the customer contact the card issuer if the correct CVV/CVC is still being rejected.