After we checked in, we wanted to take a nap, just when we fell asleep, the hotel phone rang, we took up the phone, could not hear anything, we laied down again, the hotel phone rang again, and again we could not hear anything after picking up the phone, then we upplugged the phone line when back tp sleep; a few minutes later, hotel staff nocked on our door, and told us to contact the front desk, we called the front desk, could hardly hear what they were saying over the phone, they were telling us that they did noy pick up our date of entry into China when they scan our passport at check-in, and need to reconfirm. The second day, when we were asleep, someone know on the door again, we woke up, open the door, but no one was outside. We wanted to hand "Do Not Disturb" sign on the outside handle of our door, but could not find such a sign anywhere in our room.