As follows:

1. The credit card has not been opened;

2. When the card machine is used, the line is busy or malfunctions, or the card machine itself is faulty and cannot be used. Complete the transmission of transaction information;

3. The available credit limit of the credit card is insufficient;

4. The magnetic stripe on the back of the card may be degaussed or the card has been damaged;

5. Make purchases at merchants restricted or prohibited by the state or regulatory agencies. For example, the Banking Regulatory Bureau has restrictive requirements on non-personal daily consumption such as housing, building materials, and wholesale.

After cardholders encounter credit card swiping failures, they can investigate one by one based on the above reasons. If your credit card limit is insufficient, simply apply for a temporary limit increase and pay it back in a timely manner. If the card is worn out, damaged or even demagnetized, it is recommended to replace it before the end of the year.