1. The credit card has expired. The phenomenon of overdue credit card is one of the primary reasons for the reduction of credit card limit. In addition, this will be included in personal credit information.
2. Idle. After the credit card is issued, if it is not used for a long time, the amount will also be reduced, and banks will think that individuals have no financial needs.
3. Suspected of cashing out. If there is abnormal consumption, if it really belongs to your own behavior, you can contact the bank to appeal.