Freeze the account for no reason and ask me to pay 20% margin to unfreeze it. Refuse to withdraw and blocked by customer service

My friend induce me to deposit at warlock market under the name of investment. On Jan. 13, 2021, they freezed my account for no reason. I asked platform to unfreeze it, the customer service required me to pay 20% margin, but the platform does not have such rule. I demanded a withdrawal on 14th, but the platform rejected it and blocked me.