banned for no reason?

Ok, so today was my first time playing Halo 4 online and the whole time I had my mike plugged in but i never said anything, it was also muted. I got off and a few hours later got back on(around this time 10:03pm and it said I was banned from chatting on Halo 4. I never said a word and I’d like to get unbanned if possible. What do I do?

You probably had a ton of annoying mic interference. Did you have a Kinect mic turned on? I hate those things…