1 Yes, Sheraton Mianyang Hotel needs to pay in advance.

2 this is because the hotel needs to ensure the quality of room reservation and service, and paying the room fee in advance can ensure the room reservation and the stable operation of the hotel.

3 if you need to cancel the reservation, you can do it according to the hotel's cancellation policy. generally, it takes a certain amount of time in advance to cancel the reservation, and a certain cancellation fee may be charged.