random permaban for playing the game

I was playing unranked br with my mates a few nights ago and I randomly get banned in the middle of a match. I by far had the worst stat spread in my team match by match so I have no idea what wouldve set the anticheat off. I had r2modman open from a game I was playing before I hopped on and forgot to close it but surely that wouldnt constitute a ban. Any tips? My appeals have been denied twice and the response changed from “banned for cheating” to a gameplay penalty. No idea what to do.