Just a group of people who know a little about Taobao rules or have done it in Taobao, get some software and use so-called big data to fool novices who don't know anything. As soon as the tuition fee is paid, they want you to confirm the receipt, and everyone wants a refund. They don't know who to call. They're just a bunch of liars. Open classes are like pyramid schemes. Many people are cheated in one class. This is the attitude. They go to work in the morning 10.30. I sent a message 1 1 and didn't return until half past ten. I chat in the group, tell me my complaints and suggestions, and call. Either I can't get through or I haven't answered for a long time. I'm so busy, I pay nearly 3000 yuan a week, and all I get is a few QQ replies and a few minutes of phone calls. I hope you won't be cheated again!