Halo 5 refund request

I was playing halo 5 streaming it for like one match and then after the game ended I got banned expires 317. I don’t know why I was banned I was just playing and listening to music and streaming that’s it. Also when I push the button to fire it doesn’t work half the time I went and bought a new controller too and it does the same thing. I’d like to get a refund on this