Five-star hotel. I didn't check out when I left. Will that room always be in arrears? Left without a check-out card!

There will be a corresponding deposit when you check in, so leave your information. This is just a room card. You can't use it yourself without activating it, as long as it doesn't damage anything in the room! You use a bank card to open a house, but he just freezes the amount you should deduct. It's okay. Even if you leave, he will just brush away the frozen amount for you.