The first time I made a withdrawal and paid the money, the customer service said that margin will be returned to me and ask me to pay again to make two withdrawal once together

I borrowed a loan through a friend to make an order, but my friend felt that the amount of my fund was too small, so he helped me save 20,000 US dollars. I made a little later and wanted to return the money to my friend. I paid the tax, handling fee, deposit, etc. After I paid the customer service, they said they wanted to withdraw the money, and then returned the deposit to my account. I asked the customer service to pay for the one-time withdrawal. The customer service responds by pressing the button. The result is what I will tell me later. The second withdrawal and the first withdrawal will become a total of one withdrawal, and I will be asked to pay the money and pay the security deposit. I have to take the money I paid and need the security deposit? They don't give me money at all, and people keep paying!