My account and my Xbox 360 had the same message. You have been temporarily banned from earning credits. If I am in breach of a Xbox live contract please email me as soon as possible. Explain what I have done wrong and I will do whatever it takes to make it right. Thank you.
Banned cRs work like this:
1st Offense: 24 hrs
2nd Offense: 1 week
3rd Offense: 2 weeks
4th Offense: 343 will send you did -Yoink- creek.
I suggest you direct your attention to Why did I get banned? The Official Thread and move the discussion there.