How to do with the frozen fund in LXG ? How to unfreeze it?

In this August,I was pulled into a stock exchange group, in which there were teachers shared and analyzed some stocks.Having observed for while,I found that he was professional and his recommended stocks were on rise mostly.I also bought some shares with gains and losses.Then we got used to each other.Half month later,he recommended digital currency,saying that the stock market was not optimistic.He said that a new MAW would be on the market, and we could profit more than 5 fold as long as we draw the lucky number,showing his account in the group.Many members claimed to follow him.Then he recommended us LXG platform.I hesitated at first.Having seen so many members profiting,I joined in and deposited 300000 RMB!With teacher’s instruction,we profited more than 50000 RMB within a week.Then the teacher asked us to add fund for the becoming cocking market.I added another 300000 RMB for trading.Though making losses in the preliminary,I trusted him.Because of the overnight slump,I only had 100000 RMB left.I wanted to make a withdrawal to recover the loss,while the customer service kept holding off !I felt something wrong and argued with the teacher,but he removed me off the group and blamed the loss on me,keeping asking me to add fund.After I refused his proposal,he never reply to me,st which time I realized that I’ve been cheated!