Can't withdraw money

While I was studying in a group course called Kazuyoshi Otake, I was encouraged to open an account with ESMOND in order to manage my assets with mirror trading. I was able to withdraw money during the free trial version, so I joined at the next rank, and although I was making a profit, my withdrawal was refused because I was asked to pay the operating fee when withdrawing money. I knew from the beginning that I would be paying for the cost of running the course, but what if ESMOND refused? If I can't withdraw money, I can't pay it.