2、? network problems
When paying by credit card, the system did not receive the payment application in time because of the unstable network, or the page was refreshed repeatedly for the above reasons, which led to the submission of payment application for many times and the final payment failed.
3、? The transaction is not authorized.
If the card used for consumption is a 3D card, the 3D code must be filled in during the payment process. If it is not filled in, the system will judge that the transaction is not authorized and refuse to deduct money.
Another possibility is that the credit card issuer did not authorize the transaction.