Credit card pre-authorization refers to the transaction in which the card issuer or its agent confirms the permitted frozen amount before the deduction of the special merchant. Pre-authorization will occupy the credit limit of the card. When the customer settles the pre-authorization, the pre-authorization will be cancelled. Within 30 days of pre-authorization, if the customer fails to settle the account, the pre-authorization will be cancelled.

Overseas pre-authorization is a credit card pre-authorization business that takes place overseas.