does the subject want to ask, "What's the matter with the postal credit card with a credit limit of 3?"? Abnormal behavior, not using for a long time.

1. abnormal behavior: the bank card is a credit card, and there is abnormal card use behavior when cashing out.

2. Long-term non-use: The bank credit card is not used for a long time. In order to control the risk limit, the user can contact the bank actively, and the customer service will check the actual reason and propose a solution to the user.