The hotel took the wrong card.

When you check in, you swipe the pre-authorization, that is, you freeze some money on the card. When you check out, use your pre-authorization card form to complete it at one time, which means that you have swiped the room charge from the frozen money, and the rest has been automatically returned to your card, which is the case in every hotel. And the hotel front desk is not a fool. What's the use of them swiping your card more? They can't put it in their pockets. This is not cash.