Cancellation using credit card pre-authorization: Customers can directly call the service hotline of the Postal Savings Credit Card Center (remember not to let the merchant send a fax directly).

In addition, if you use a credit card to request the immediate return of funds, theoretically you can cancel as long as you obtain pre-authorization on the same POS machine. However, due to different domestic acquirers’ settings for POS machines, and the types of POS machines, There are various situations where successful cancellation can occur, but not many. So if you encounter such a situation, most people will cancel the pre-authorization manually.

The process is as follows:

The merchant will fax the pre-authorization cancellation application to its acquiring bank. After the acquiring bank confirms it, the acquiring bank will then send the fax to the authorization room of the bank's credit card center for authorization. Relevant personnel in the office will handle it. When the authorization is canceled on the same day, the quota will be restored immediately. If the quota is not canceled on the same day, it will still need to be processed by the accounting office, so it will take working days to restore the quota.

This is an introduction to canceling credit card pre-authorization.