Alarm clock hell

Need advice.

Have a flatmate who has a cocktail of issues. As in (racist, misogynistic, aggressive, etc). Anyway, I'm next door to him. Every single day at 7am his alarm clock goes off, and stays on for hours, (waking me up and making it impossible to go back to sleep). Not only that but he keeps me up till the early hours shouting on his games. So I'm getting about 4 hours of sleep a day, every day.

It went on for a month, I then politely asked him over text, if he could please either turn it down, or get up earlier and turn it off.

He then proceeds to read and ignore it, and the next day, at 7 again, his alarm is actually louder and more obnoxious. After about half an hour of it, I knock on the wall, and he turns it off.

I'm scared to confront him because he's very aggressive. What do?

Does your accommodation not have an app where you can report people for noise?

Does your accommodation not have an app where you can report people for noise?

Holy ****, is that a thing? Could have done with that when I was in halls.