Hi!
Apologies for the delay! As ^MC said, we try to be as prompt as possible. You said you contacted us via twitter right? What is your twitter handle? If you'd like, I can try to help through there.
In the mean time, it looks like you've joined a new clan. If you'd like to regain ownership, you'll have to leave that clan. Did you make a new callofduty.com account? ^MD