There are so many online stock fraud companies, and the behavior is rampant. Why is nobody in charge?

I'm from Shandong, and Shenzhen says I'm from Kaiyuan Fund. They provided me with stock information and asked me to share stocks with them. They said that after the profit, I split it 20-80, and I split it 80-20. I remitted 3800 yuan to them, and then the stock profit was divided into 28%. At first, a person who claimed to be Xiaolan contacted me by phone, and later said that he wanted me to share stocks with their superior director Zhao. Director Zhao's telephone number is 075533272759, but after receiving the money, Director Zhao couldn't contact them for a long time. Sometimes the phone can get through to Xiaolan. They said to record it and report it to their leader, and then they hung up and continued to deal with me. Xiaolan's previous telephone numbers were 0755338373 1 0755 33838706 and 075532720 15. The phone is still connected. The bank where I remit money to them is China Construction Bank with card number 6227.

00720047069873 1, whose account name is Qiu jianqiong, seems to be their financial controller. Now they continue to cheat. They let me accompany her to do stock trading for a few days, which made me lose a lot. As soon as the stock fell, they turned off their mobile phones and changed them all day. They must have cheated a group of people and changed their phone numbers to continue cheating. I asked about these people in the open source fund. They cheat people under the banner of Kaiyuan Fund. I hope the relevant departments will investigate as soon as possible and help us get justice. The bank account is absolutely true. I hope the relevant departments will catch them as soon as possible, safeguard the rights and interests of the deceived people and avoid more people being deceived. I reported it for a long time, and they continued to lie. I don't know when to arrest them.