How to use the pre-authorization amount of CCB?

When you check into the hotel, the pre-authorization transaction using the credit card will occupy the credit card limit.

When leaving the hotel for the final settlement, the hotel will complete the pre-authorization (directly pay with the pre-authorization amount, refund more and make up less)/cancellation (the landlord will pay in other ways, such as cash), in which a small amount of credit may be released after the pre-authorization is completed (provided that the settlement amount of the landlord is less than the pre-authorization), while cancellation will release all the pre-authorization credit, and the time for both credit recovery is 1 after the merchant operates.

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. At that time, the landlord can check the changes of available credit cards (specific way: you can use the mobile phone number you reserved at his home, edit the short message: "Last four digits of 3 13 # card number" until 95533, and the available credit card limit will be replied when the short message is sent).