How to use a credit card to open a hotel room
Yes, swiping the card at the hotel is only pre-authorization, which is equivalent to freezing some money (deposit). When you check out, this part of the money will be thawed and deducted from your consumption. For example, if you pay a deposit of 1000 and the room rate is 400, then when you check out, you will only deduct 400 instead of 1000.