2. The settlement card is not bound or the binding is not standardized: sometimes the payment bound by the settlement card is not an account card, which will also lead to the failure to receive the account;
3. Someone improperly uses the credit card, triggering the risk control system of the bank or payment company, resulting in unsuccessful credit card processing or suspension of transaction collection.
4. Sometimes, the payment platform will update and maintain the payment system or payment channel, resulting in the transaction delay in transaction processing.
5.pos machine does not support instant delivery.
6. Network reasons: If the card issuer feeds back the transaction data to UnionPay or UnionPay to the payment company due to the unstable network signal during the transaction, the pos machine cannot get the transaction data feedback, but the payment data has been released at this time, resulting in the user receiving the success message but not receiving the payment.
7. If the pos machines used by users are two cleaning machines and miscellaneous brand machines, the replacement machine will not only fail to arrive in time, but also risk not receiving money.
8. Unilateral account problem;
9. The reversal transaction was unsuccessful.
Is credit card transaction password the same as payment password?
A credit card has only two passwords, one is the inquiry password and the other is the transaction password. If the above payment password refers to the password that needs to be presented when swiping the card, then the meaning of the transaction password and the payment password should be the same, and the passwords of the two are naturally the same. Users can set the query password and transaction password the same or different.