Withdrawals will be denied for higher amounts.

I was introduced to Takashi Yamashiro's group by someone named Mori through an ad on Facebook. At first, I thought it was a stock research group, but it turned out to be a forex group, and all the members in the group trade under his direction under the guise of trading instruction. Every time, we won. I thought it was strange and applied for withdrawal of $350 once. I was able to withdraw that, but the next time I applied for a withdrawal of $16800, it was denied on the grounds that I had traded during the application process. I tried again, but no luck. This time, I applied for $18,000 without trading and was told that I am now trading crude oil and that I have a restriction of 3 months from new risk account, so no luck. I came across this site and saw other people's cases and they look exactly like this exchange's format. I thought this was the same group. It was also the same with a great professor coming out later. The investment is 2.49 million JPY. Now it is $44,000. Somehow? I want it back. The person in charge of the exchange is called Sasaki. This time, he says I can withdraw the money on the 18th. I think it is probably a scam and I am thinking of getting a lawyer involved. Thank you in advance.