Cheat money. Abscond. Do not reply messages

I have a WeChat friend who is a salesman, making Short term foreign exchange. This guiy sent me a QR code and asked me to invest. Then I began to invest with a teacher he recommended. But I always made mistakes even if I was so careful. Then they induced me and threatened me to add money to keep investing. In fact, the data was manipulated by them. After the three-round operations, I applied for withdrawal. The withdrawal hasn’t arrived. I was told to pay taxes. It has been a month and no one replied to me. They keep cheating others via other platforms. I hope investors can stay away from these frauds!