Rollinj, I got that message at the end of November 2011. To be exact, on Cyber Monday. I contacted them actually I was talking with 2 Adwords support. One of them told me that my account was under review that I should not be worried and the other one told me the same message as you received "the bla bla account banned because of bla bla TOS".
I received the same message in my Adwords account but I will suggest to wait 2 weeks (that is what it took to get out the "Under review" phase) and see what happens.