There are many reasons for the failure as follows:
1. The credit card hasn’t been authorized to pay internationally and you should contact your issuing bank for the solution.
2. Each IP address is allowed to pay only once in a day. It means you can only pay one order in a day.
3. The limit of the credit card is not enough.
4. Our credit-card system doesn’t accept the credit card, please try another card.
5. The billing address of the credit card is different from the address that you receive the order.
6. The information of the credit card that you input is wrong, such as the card number, CVC code and so on.
How to resolve the above payment problems?
Try a different card .Make sure the shipping information is same as billing information.