For adding a billing address, ensure that your account details are accurate. If you encounter errors, check if the address is correctly formatted and matches official records. Alternatively, you can contact the card issuer for assistance.

To add a Visa debit gift card, verify that it’s activated and has a valid balance. Ensure you provide the correct card number and expiration date. If the transaction fails, contact the card issuer to resolve any issues such as authorization or payment limits.