I am sorry to hear your complains, nobody ever complained like you did, so let’s try to explain:
-about the noise - only you ever complained
-also the size of the room is very true, it can easily accommodate 2 bunk beds (see the pictures), note that the price is lower than a room for four on a hostel
-the showers are meant to be like this, you can put on the wall OR grab on your hands, sorry you didn’t understood it…
-there was never a complain about hot water, the central boiler is 2000L capacity
-the door lock is being fixed - someone damaged it… seems so…
You mentioned I did not let you stay at the room until late, well, the bed sheets were all removed and washed, also you did leave your luggage in the flat.
Why you didn’t mention that you arrived 4 hours late and we didn’t complain ? Do you really think at 5am I would show you the flat? The next day you could have asked, as you mentioned you were always in touch using the app.