Refuse to withdraw. Cannot contact the customer serivce

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 in the beginning. They thought that I was an excuse to stop the loss and manipulated my account to maliciously lock up the position, inducing me to increase the position and let me. 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 canceled my account, and I have not been contacted. on customer service