You used same youtube account where you had adsense and youtube or different adsense and differende google acc on youtube?
Blame it on a competitor intentionally attacking your videos.
well i could ruin your partnership by clicking on ads on your videos loads and loads of time so send them a message saying " why i have i been banned i played by the book this is outrageous! i believe a competitor attacked my video" ect however google advice you to watch your adsense account for unusual activity and that its your faultwhat do you mean , attacking?