I need to pay income tax of 30% of the withdrawal amount

There was this chat group created by Max and teaching assistant Chen Xhan. Later, they invited Mr. Yang to join the cooperation and persuade everyone to participate in the compound interest plan. One day I told my teaching assistant Chen ZhiX that I wanted to withdraw money, and she said she would contact Mr. Yang to pay the share, but after the share was paid, the backend webpage could not be opened. Mr. Yang said that the account was checked for tax evasion, but in the end he said that I had to pay 30% income tax on the withdrawal amount before I could restore the backend login of the webpage. I felt like I was scammed.