Withdrawal of 400,000 US dollars is said to be temporarily withheld by the Hong Kong Monetary Authority, and personal income tax of 536,000 must be paid

Said that the handling fee for the account reached 120,000 US dollars was reduced from 50 US dollars to 10 US dollars per lot, and I was induced to deposit 500,000 yuan and get 68,880 yuan. Another person helped me to operate the account and bought 500 lots, but the position could not be closed, and an additional deposit of 97,593.13 US dollars was required. When the position was closed, at the time of withdrawal, during the process of withdrawing USD 400,000, it was said that it would be temporarily detained by the Hong Kong Monetary Authority, and personal income tax should be paid 536,000. I'm desperate now, I should have encountered scams, and the chat software can't log in now. At present, 400,000 US dollars cannot be withdrawn, and there are still 125,279.96 US dollars on the platform. I invested about 1.5 million in the principal myself. I don't know what to do now