Shadow banned for over a year

I have been shadowbanned for over a year now starting in bo6. I am an above average player with a 4+ KD and I have always played legit. When I got the ban, I stopped playing and made a new account because it was taking longer than usual. I have spent over $200 and haven’t played in it in months. I am still campaign banned on bo6 and shadowed in bo7 and warzone. Is there anything I can do its fucking infuriating