If CCB's credit card is overdue and the credit limit is halved, you can reply as long as you pay back the arrears. But if it is for other reasons, it is not so simple. For example, there is a suspicion of cashing out. You need to use the credit card normally for 3 to 4 months and keep a record of using the card and repayment, that is, large amount and small amount. You also need to provide an invoice to apply for the restoration quota.