Unable to withdraw and it requires a series of fees

I process the withdrawal. It used to arrive wihtin two hours. Now, it requires 25% income tax of the profit to process. After I pay the tax, it is said that it takes 10 working days to convert large amounts of US dollars into RMB. If you want to quickly handle the exchange business, you need to recharge 4,000 US dollars to handle it, and you will not be able to handle the withdrawal business.