The Shanghai Pudong Development Bank Credit Card was restricted just after being used twice, indicating that the credit card does not support the transaction. The reasons are: \x0d\\x0d\ 1. Transactions suspected of cashing out \x0d\\x0d\ At the same POS If there are several large integer amounts in a row on the machine, or the same IP has been paid multiple times through the online payment platform in a short period of time, etc., if there is suspicion of cashing out or money laundering, the system will reject the payment. \x0d\\x0d\ 2. There are problems with the credit card itself \x0d\\x0d\ For example, the credit card balance is insufficient, the amount of credit card swiped exceeds the single/daily/monthly payment limit, the credit card is suspended, etc. At this time, payment using a problematic credit card will also result in a chargeback. \x0d\\x0d\ 3. There is a risk of credit card fraud \x0d\\x0d\ Cross-border transactions are likely to involve credit card fraud, especially when the cardholder’s transactions in the recent period are all in China, and then suddenly a When making a cross-border transaction, the bank will suspect that the card has been stolen overseas and refuse to pay. If the IP that the consumer pays comes from an area classified as high-risk by international credit card organizations, the system is likely to rate the transaction as a high-risk transaction and refuse to charge. \x0d\\x0d\ 4. Reasons from the card issuing bank \x0d\\x0d\ Sometimes a card chargeback occurs because the card issuing bank refuses the transaction. The cardholder needs to contact the card-issuing bank to find out the specific reasons why the card-issuing bank of the consumer's card refuses the transaction. \x0d\\x0d\ 5. Network or equipment failure \x0d\\x0d\ There are also cases where payment is refused due to objective reasons, such as network problems when paying online, card equipment failure when swiping cards offline, etc. .