The WGT's decision is kinda understandable. Lots, lots of activities for a genuine newbie in that short period of time since you joined, and seems like you know exactly where you gotta guide yourself to. Not saying you're cheating for sure but your activities do look suspicious indeed.
WGT has built an algorithm for detecting multi-accounters (which is at times terribly wrong and inaccurate) and you probably fell into those criteria.
If you're really innocent, write to WGT as Sam stated. Good luck.