bonus issue

I opened an account, started trading, made profit of approximately 12000 and today they closed my account and simply refused to pay anything, they are scammer, what shall I do to recover my amount and profit.

Hi, I would like for you guys to assist me in anyway possible,not the only one that had to overcome a loss. I recently started trading with xm whereby my account was managed by a mentor. I've tried to withdraw and that lead to my account being blocked and all my funds taken away..