Banned without even playing the game??

So i just downloaded Black ops 6 and as soon as i open it, it hits me with a ban message? How - if I’ve never even touched the game OR even played a cod game within a whole year

So i just downloaded Black ops 6 and as soon as i open it, it hits me with a ban message? How - if I’ve never even touched the game OR even played a cod game within a whole year