normally, when a credit card is pre-authorized, there is a short message to remind you, and the short message should indicate that it belongs to pre-authorization.

however, if the merchant is not aware of the situation, it will not involve the success of consumption, so there will be no short message reminder.

you call customer service to check that there is no record, but it depends on how much credit card is available. If the available quota is

consistent with your actual quota, you will naturally not see the previous pre-authorization.