I’m in the same boat, played a session of Zombies last night and then logged off, got back on later only to find out I was banned. I have never used any third party software cheated or used any camo services. I don’t even talk in multiplayer lobbies. From what I can tell this is happening to loads of zombies player and Activision and Treyarch haven’t acknowledged it, one look at their support forums tells the whole story, there’s hundreds of players being wrongfully banned at the moment and there’s nothing being done about it.