Used for an International fraud

I registered my account in Starek with a support of a man I met through SNS, and deposited about $10000 with his support through some bank accounts which changes from time to time. And he instructed me how to buy and sell foreign currencies with MT4, in which Starekco was linked, with a SNS and helped me gain some revenue. Then I applied for withdrawal of $100 twice and they were successfully reviewed with $200 reduction from my account. However the amount of money has not been transferred to my bank account registered in Starek. Moreover, when I asked to withdraw $10000, he asked me pay 20% of it as a tax. So I transferred $2000 in my country’s currency but finally it hasn’t transferred. I would like to withdraw and transfer DIRECTLY to my bank account. Thank you for fixing this.