What is with this games report system?

Grinded the nebula camo in zombies for about 3 prestige’s. Hadn’t touched multiplayer at all in that time. I was previously shadow banned early into bo6 while grinding for dark matter. Tell me why, after 3 prestige’s of only playing zombies….. I play 4 games of multiplayer and I’ve been shadow banned again? What horse shit is this system??