Someone in the hotel is playing mahjong and can't sleep.

Complain at the reception desk that the hotel is a paid service place and let the guests have a rest. After receiving the money from the guests, the hotel should provide a healthy, safe and quiet rest environment for the guests. If someone plays mahjong in the middle of the night, the hotel service staff should stop it. Whether staying in a hotel or someone else, you must abide by the hotel regulations. Keeping quiet in the middle of the night can't affect others' rest.