Is it useful to call the police?

At the end of April this year, I joined a so-called cast post exchange group. At the time they advertised that stock yields were high, so I believed it. I paid 100,000 yuan for the operation to become a customer. Soon, the customer service staff told me that the stock’s current low return is not good. They suggested that I upgrade my service to COFCO, and the return can reach 30,000 yuan. Later, the account manager said that if I can pay 200,000 yuan, I can become a VIP customer and the income can reach 60%. I said I didn't have that much money, so I paid 100,000 first. Later, the customer service often did not respond. I made all savings lost. The service refused my withdrawal request. The reason is that I have listened to this course. According to this algorithm, I must give them money. Since joining this company, my life has been completely messed up. At the end of May, the company teacher suddenly disappeared and ceased to serve. My refund request was rejected. What makes me even more angry is that they said that my service time has expired and there will be no refunds.