If your credit card is set by yourself, you can log in to personal online banking of credit card to cancel the limit.

If the bank automatically restricts your credit card, it may be because your card is safe; Or you usually spend less actively, and the bank intends to limit the reduction of the quota; It is also possible that you have a bad overdue record, or the bank monitors that you are suspected of cashing out and automatically restricts it. If this is the case, try to cancel the limit through online banking. If not, you can only call the banking service hotline to apply for cancellation.