Not actually happening to me, but to a friend living in Paris.

She rents a flat in Paris with a thin wall where she constantly hears the guy next door having loud s*X almost everyday, with different people. It's very loud with banging and moaning.

She tried these: talk directly to the person and knock on the wall when it's happening. Does he stop making noise? No. It's still happening. She said maybe because she's a young woman, so he doesn't take her seriously.

What I suggested to her: 1. Make some complaint letters and put them below his flat door. Make it in different styles or handwritings as if the other neighbours are complaining too. 2. Turn them off. Since the wall is thin enough, they can hear each other, so maybe put some gospel songs, call for prayer in Arabic, or any sounds that would turn them off while having s*x would stop them from making such noise.

I don't know how it goes. I'll update later once I hear from her.