"Porter plainte pour bruit" en Anglais

Good afternoon, building management office. How can I assist you?

Hi, I'd like to file a noise complaint. My upstairs neighbor has been playing loud music late at night for the past week.

I understand — that sounds very disruptive. Could you tell me your apartment number and approximately what time the noise usually starts?

Ce n'est pas grave de se tromper, c'est comme ça qu'on apprend