This platform cannot withdraw and delete my account

After being introduced by a woman, I followed a person named Li Dongyang and came into contact with the platform. I would not lose a little money at the beginning. They thought that I was an excuse to stop the loss and manipulated my account to maliciously lock the position, and induced me to increase the position. I charged a deposit of more than 80,000 yuan. When I withdraw the money, the platform customer service asked me to pay the 80,000 yuan authentication fee and refused to withdraw the money for me. Now the platform has cancelled my account and has contacted me. There is no customer service