Was perma banned for no reason

I played Warzone 2.0 once when it released, and i check yesterday after the patch and I am permanently banned for no reason. I submit an appeal and a ticket and they respond back with " Your appeal has been reviewed and we’ve confirmed with our security team that your account has been permanently banned for using unauthorized software and manipulation of game data. As you were the account holder at the time of infraction, your ban will not be overturned." I just got this PC 2 months ago and have installed nothing other than games and recording software. It was my first time playing Call Of Duty on my battle.net account ever and I just wanted to try out the game and now im permanently banned. Please help