When the hotel wanted to check in, he gave the room key, and when he entered the room he got a triple room. I went back down to the receptionist and said that this is not the room I booked. The receptionist said yes, it was the Family Suite room that I booked (don't worry, the receptionist was nice and soft-spoken). I showed him the room I booked under the app, it should have 2 twin beds and 1 double bed in the same room, but he said someone had just checked in that room. I was so nervous for a moment because why did it get overbooked when there was only 1 room. Finally, the receptionist gave me two comfortable rooms to calm my burning heart. I also told him to please talk to your management about this problem, otherwise this could happen to another customer, and he will be angry because he is overbooked. So, careful guys want to book after this, better you call the hotel first if the room is still available. I have made a complaint to their receptionist, so I hope this kind of thing doesn't happen again.