Generally, when you check into a hotel or rent a car, you will use a credit card for pre-authorization transactions, which, like deposits, will occupy the credit card.

At the time of final settlement, the merchant will complete the pre-authorization (pay directly with the pre-authorization amount, refund more and make up less)/cancel (provided that the landlord pays in other ways, such as cash), and will not handle it.

Case 1: After the pre-authorization is completed, the merchant and the bank settle accounts. Generally, after 1-2 days, the posting status of this transaction can be inquired through the credit card bill details (inquiry method: the paid and unpaid bills of the last six periods can be inquired through the credit card website of CCB and the credit card service hall-after entering the information as prompted), which means that the credit line has been released.

Case 2: After the pre-authorization is revoked, the landlord's quota will be automatically restored within 1-2 days.

Case 3: If the merchant does not handle this pre-authorization, the quota will be automatically released within 30 days for domestic transactions and within 0/5 days for overseas transactions.