I met someone on a dating app. He introduced me to Dr. Ou, who claimed to be a trading director, and said he could help with foreign exchange transactions. I used the MT4 platform provided by their company for trading. At first, Dr. Ou said that a minimum principal of 1,000 US dollars was required to start trading, so I invested 1,009 US dollars at that time. After trading for a week, I tried to withdraw money. At that time, I only withdrawed 160 US dollars, but the withdrawal was successful. Later, the doctor asked me if I wanted to participate in the platform's activities and said that if I deposited 50,000 US dollars in value, I would receive 20,000 US dollars. But I didn’t have that much money, so the doctor said he could apply for it for me first and then make up for it later, so I agreed. Another girl also said that she could pay $39,000 first, and I would make up the rest later. I did as they told me and invested another 11,004 US dollars. I asked the doctor if I could withdraw the money, and he said yes. But after applying for withdrawal, there was no news for two days. I asked the doctor, and he said that because the amount I applied for a withdrawal was too large (I applied for a withdrawal of 70,000 US dollars), it was investigated by the tax bureau. He said that I have to pay 12% tax on profits (a total of 9314.8 US dollars) before I can withdraw money...