I have to pay tax first when I withdraw money. Is there such a situation?

I made a profit of more than 50,000 US dollars in this broker, and my application for withdrawal was approved, but I have to pay taxes before they can remit the funds to me. Is this a trick, but I am applying for two withdrawals. One is to apply for 10,000 US dollars in digital currency. The 10,000 US dollars from my netizen has received. I feel that this netizen is lying to me. I applied for international remittance for the remaining 56,629 US dollars. The broker also send me an email to tell me that the withdrawal has been approved, but the money has not arrived. The next day, the dealer's customer service told me that I should apply for tax payment first before remitting my funds to me.