Your videos Diablo are all over the net just google 7diab. You Tube should send you money not ban you, look at all the people that have watched your videos.
I for one signed up after watching your videos and I'm sure a lot more signed up too. Even if they didn't sign up all the clicks must be worth something. I'll be adding all this to the email I send to them.
I'll also be adding they must give you time to take your GTAIV videos down not just ban you. It's crazy how they think you can remove the videos when you can't get to your account.
They are breaching their terms and conditions as this is your first "breach" of the "Take 2's" "New" copyright terms.
Edit: after checking to be 100% correct on this I found something that may hinder than help you if we all send emails. This just gets worse.