Is it normal to call and say that Tik Tok group purchase is free?

There are two possibilities. If the group purchase of Tik Tok was originally free, it might be a sale. Because they know your Tik Tok number by entering Tik Tok Mall through you, and then call you through your Tik Tok number. Another possibility is a liar. You'd better not believe this situation, open it to Tik Tok and open it yourself.