How about Nanyang Tianxiangju Hotel?

After staying in the It hotel, he found himself not at the seaside and his service attitude was poor. If he forgets his room card, he will ask the waiter to open the door. The waiter will say in a commanding tone, I'll open it for you this time, and you must bring it next time, or don't let me open the door! Special reminder: I didn't ask the customer's name or check with the front desk during the whole process of asking the waiter to open the door. Think about how big a loophole this is. Especially reluctant to provide invoices, the room is average.