If you're using a bank card:
- Incorrect card number: Check and confirm that you've entered the correct card number without spaces or hyphens.
- Expired credit card: If the card has not expired, check that the date has been entered correctly.
- Incorrect security code: Error writing CVV / CVC card verification code: Check that you have correctly entered the card's CVV code. The CVV Code is a security code found on most cards, on the back of the card, in the signature area. For American Express, the CVV code is the four digits that appear on the front of the card above the card number.
- Secure payment or 3DSecure: With some purchases, your bank asks for an extra verification step when making the payment. It is usually a code sent by SMS or through your bank's APP. Remember to have your mobile phone nearby so you can enter the code you receive on your phone. Once you receive it on your mobile phone, you must enter the code in the purchase process.