I can't withdraw even if I try to withdraw!

At the beginning, I was introduced by a Taiwanese woman, and when I tried withdrawal, I was able to withdraw, so I was relieved, I made an additional investment, and when I tried to withdraw, I could not do it, so when I consulted with her, I can not withdraw because tax is required I was told that it would be. I couldn't prepare it because it was a considerable amount of money, but until the beginning of this year I was able to contact her, but I couldn't get it at all, and I couldn't open an MT4 account. The woman is worried about being censored when it comes to the Chinese government and seems to be a Chinese woman rather than a Taiwanese woman. I opened this account, so I tried to withdraw again, but it didn't work.