My neighbour staying above my floor is making noise every weekday at 4+ am. I have gone to her unit once when she made tgr noise but she refused to open the door. I have gone to her unit few times but she always had the door close. Finally yesterday I manage to meet her but she just denied making the noise and it continued again today. What can I do with such neighbour? I only manage to sleep 2-3 hours every weekday due to the noise and I am extremely exhausted with the lack of sleep. Thanks for your advice!

