Unreasonable deductions from profits

I opened an account with Squared Financial in August 2023 to trade gold. I kept losing money while playing by myself, and finally withdrew my gold at the end of 2023 and planned to stop playing. Then I met a teacher who taught me how to play gold, so I started trading gold again on March 5, 2024. The daily deposit was US$5,000. On March 6, 2024, the teacher took us to trade. We played 5 times, won 4 times and lost once, with a total profit of 4,112.4 US dollars. However, on March 7, 2024, the profit and return were deducted from Square Financial. A total of US$4,614.9 was deducted as commission. Other friends who played with me did the same transactions on other company platforms, but nothing happened. Only Squared Financial deducted the commission. I complained to their relevant staff, but there was no reply. In the end, I had no choice but to withdraw the money.