Customer service won't allow to withdraw

1. The customer service of this website (fake okx Ouyi) asked me to upgrade my account for the first time and asked me to pay 30% of the account balance as the upgrade fee, and said that I would withdraw the money after the payment. 2. After paying 52844.4 USD back and forth, I was still not allowed to withdraw the funds. In the name of fraudulent money laundering, my account was frozen, and I was required to pay another 12% of the account balance to prove that my account was fine. I made a withdrawal. I paid 5026.71 USTD yesterday. The more I think about it, the more wrong I am.