Worked in the hotel for 5 months as a cashier at the front desk. 20 1 1 officially resigned at the end of February. Because of my mistake, I didn't click to check out three rooms.

First of all, this is a major mistake in your work. Secondly, it depends on the actual losses caused by your mistakes. If your hotel is full and guests come to stay during your mistake, the loss caused by your mistake is 1728. If many rooms were empty during that time, there would not be many tourists. Then it's equivalent to you not coming back, and there is no difference in economic losses. Then, although you made mistakes in your work, you didn't cause actual losses. You shouldn't pay this money, but you will be fined according to the relevant regulations of the company. If you want to settle this matter through litigation, you have to go to the labor bureau for arbitration. I guess you are more likely to lose money, because enterprises are stronger than you, and what they say is also reasonable. I wish you success in solving this problem. Good luck!