I invested upto $50000 for 3 months and made profit $80000 making total $130000 in my account in the broker. When i tried to withdraw $78000, they held it and asked me to pay tax 20% of the total profit, $16000 in advance. I asked them to deduct it from my account. They say they need to receive tax in advance. Now my account is frozen. Any one can help me?