At the end of October, I met a person named Chen Xin on WeChat and took me to the COzFx foreign exchange platform to say that I could make 100% money. I started to invest 50,000, and then invested another 100,000 during the operation. When I withdrew, I said that there was a problem with the bank card number and the cash could not be withdrawn. 15% margin is required to withdraw cash. But now...