When users frequently use POS machines to make large cash withdrawals, especially when using capping machines to cash out, this will make banks have some doubts about the credit problems of users. At this time, in order to ensure that the bank will not suffer losses and users will not be stolen, the bank will reduce the credit card limit of users, which will lead to the freezing of credit cards.

2. Overdue repayment

Users pay overdue payments many times, which causes banks to doubt users' credit and repay principal and interest, and will also freeze credit cards.

3, two clear POS machine jump code, set of code

Due to the flood of second-hand cleaning machines in the market, the consumption records of credit cards are in a very chaotic state. This method of using credit cards can easily lead to confusion in credit card management, so it will also be frozen by banks.

4. Enter the wrong password three times.

If the user enters the wrong password three times in a row when using the credit card, the bank will freeze it to ensure the security of the credit card.