Because credit cards have a pre-authorization function, hotels or booking centers such as Ctrip Elong can freeze part of the amount as a guarantee through pre-authorization before you make actual consumption. Debit cards do not have a pre-authorization function. .

If you do not check in after making a reservation without canceling, you may be charged a certain amount of "liquidated damages", which will be deducted from the pre-authorization freeze and turned into actual consumption.

So if you use a credit card for guarantee, you must remember that if you are not going to go, you must notify the other party of cancellation in advance.

If the hotel has reserved a room for you, it cannot sell the room to others. If you don't show up, the hotel will suffer losses. Therefore, if hotels want to avoid losses, they need guarantees to ensure the success rate of bookings. This can be understood as a function similar to a deposit, but the deposit is paid with a credit card.

It has nothing to do with the credit limit of your credit card. If you don’t understand, please don’t talk nonsense!

I work in a hotel.