We live in a huge apartment block. 20 floors.
They're having a party (again)
Im underneath.
Music so loud.
Dancing and banging on the floor.
Slamming balcony doors and shouting.
I've just gone up to complain and they're saying I'm unreasonable as it's their friend's birthday. Then they said tomorrow they'll have one as it's Easter.
Last time it was X then Y Bla Bla.
Our building has policies against this. Aibu?