I can't withdraw. Help me.

When I tried to withdraw after trading on 11/17, I was suddenly told to pay a security deposit for insider trading, and it became impossible to withdraw. Is this a fraud company? The person who told me on LINE said that this is a subsidiary of XM, but when I contacted XM support, they replied that it was not. The person who taught me on this line was also a fraud group. I really can't stand cheating. I want my money back in full. It seems that there are other victims, so I want you to do something about it.