QQ group buying lied to me, is this fraud? What should I do?

You should clarify the problem with the merchant first, make clear the specific details and see what the merchant says. If you can compensate, even if you can't, then go to QQ to buy a group or call directly. If you want to say something malicious, see what they say. If it really doesn't work, say that this matter can't be solved. You can brush posts and step on them on the Internet every day, because if Baidu searches, it is quite possible that your post or message page will be in the top few. However, I advise you not to be too angry This kind of group buying is inherently unsafe. Don't get too angry. It's not worth it, is it? Don't let those swindlers affect our mood.