There is something wrong with the 1.POS machine, but there is nothing wrong with the card itself.
2. Poor network and bad credit.
3. The status of the credit card is abnormal, such as being frozen by the risk control of the issuing bank due to bad behaviors such as overdue repayment, or being reported lost or expired.
4. The system monitors that there are certain risks in the current trading environment, and it is suspected that it is not my own operation, but someone else is stealing. In order to avoid risks, banks restricted transactions.
5. When trading, the transaction password is entered incorrectly or the card swiping speed is too fast, so brush it again.
6. The consumption amount exceeds the prescribed limit.
7. The available amount of the card is insufficient, which is lower than the transaction amount.
8. The card chip is damaged and demagnetized.
9. The consuming merchants are within the scope of prohibited industries (such as real estate, wholesale, stock funds, investment and wealth management, etc.). ).