Terrible experience but place is fine otherwise

Accommodation is decent - good location and basic but comfortable room.
Staff don’t always clean the room (and refresh the towels and daily water), even when you leave the sign on the door requesting them to clean it.

My stay was utterly soured, though, by a bad experience on the last night/check out. During the night, the air conditioner, which is hung very high in the wall (almost at the ceiling, strangely), started leaking badly. Water damaged some of my belongings, including electronic cables, and soaked my clothes. I didn’t complain, though, as these things happen. And, up until then, everything had been fine, so it wasn’t worth causing an issue over.
However, when I was walking to the bathroom holding my room key, which has two plastic tags on it, I slipped in a puddle of water from the air conditioner. I smashed my back and broke my fall with my hand holding the key. Part of the plastic broke but the key was still perfect and the plastic bits were only particularly chipped.
I went downstairs to mention this and I was told it was fine.
When checking out an hour or so later, the staff attempted to withhold 650B of my 1,000 deposit. I was outraged and mentioned that my clothes were all soaked because of the faulty air conditioner; and that I had slipped and fallen in the water that had come in, thereby chipping some of the plastic off the key fob.
I had to stand my ground over being fined for an accident that was, to all intents, caused by faulty equipment. Eventually they took 300B from me. I didn’t have time to argue as I had a ferry to catch. But I made it clear that I was absolutely furious to be charged for a piece of plastic that would cost 50B maximum to replace.
Long story short: terrible experience but the place itself is fine, if slightly overpriced.