There are many situations in which a bank's card may be blocked. In addition to overdue payments that may be frozen, the card may also be blocked if the card is used irregularly, such as violating TAOXIAN and TAOQU points. The bank has the right to directly freeze the card for illegal use, but usually there will be a text message prompt after the freeze. If you do not receive the text message, you can call the customer service hotline to find out the specific reason for being frozen. At the same time, you can also find out whether there is still the possibility of unfreezing after the debt is paid off.