Scam, fake chart, appropriation of invested money

I invested 4000 USD to Ekada Capital FX and traded via their platform Trading Hub following instruction of a friend. When I had a total capital of 32,891 USD, I withdrew 2,891 USD. They required me to pay 10% of personal tax ~ 289 USD, I also paid it, but finally, I received email informing that my account relating to money laundering and illegal activities. They required me to deposit 10% of current capital (10% * 35,000 = 3,500) USD unless my account will be blocked. I asked them why my account related to these illegal activities, I do not received clear answer. Now my account was blocked and I can not withdraw money. I suspect this is a scam platform, adjusting charts to create virtual profits for customers, luring customers to invest more money. Sometimes I realized that their XAUUSD chart was different from charts from reputative platforms at the time of transaction only. This means if I use their signal to trade in another platform, I will get loss. Now I can not get back my invested money (4,000 USD) and the profit (~30,000 USD - if it is real profit)