The data required for payment must match those of your card. A simple typographical error can cause the operation to be rejected. Please fill in all required fields carefully. Some credit cards, to protect you from online fraud, require an additional security code to be entered to confirm the payment. The code is provided by your bank. It is also possible that you have exceeded your credit limit or that your card has expired. Your bank can give you all the necessary information about your card and payment options.