I joined Pionex(https: www.pionyuqv.com) on May 13, 2024. Until now, May 21, 2024, I traded and earned 2,520,328,000 VND, but the exchange requires 20% tax of profit. After paying, they asked for another 5% non-money laundering guarantee fee. After paying 5%, they asked to pay an 8% conversion fee of USDT to VND. I didn't feel right so I didn't continue paying. When I contacted the customer service department to clarify the regulations regarding this transaction, they not only did not respond but also blocked my ID. So I could not contact them. From June 13, 2024, I have been unable to contact them. I hope everyone will help and stay away if you want to trade with this exchange.