On 25th of Dec, the receptionist knocked our door. She asked me to open the door in a very condescending way. I asked why she was coming, but she didn’t answer my question and threatened to enter the door directly with her reception keys. She literally said, “if I asked you to open the door, you should open it.” This is a serious violation of the privacy, and we have worried that someone will break into our flat without any permissions since this incident.