Book a stay for 2 nights, on the morning of August 17, go out since 4 am The room door has been locked. Sliding glass door. We checked that it was already locked. On the evening of 17 August, we returned. The sliding door was ajar. I was shocked to think that he came in to clean and forget to lock or not. We enter the room No trace of cleaning After a while, someone knocked the room. Is the staff to bring water to serve We then asked if it was the day when he entered the room. The staff said that come in and think about checking out and then we ask. Oh, we booked for 2 nights. Why not lock the door for us? The work smiles, but doesn't say much. Confused.