difficulty in withdrawing

I invested with AT Global the initial sum of US$ 25000 and then was pressurized by the agent to invest more. I refused. However, I was pressurized everyday! Eventually I got fed up and requested a withdrawal/refund that came under fintrack/ org mind you i sent the same request to AT Global in January and as of today, i haven't received a response to all the emails i sent them... I was really saddened by this as i trusted them; but they would have kept stealing from me.