Is novice artist Lin Bai a liar?

Lin Bai is a liar. There are more than 0/00 students in this period, and each student is 9880 yuan. After registration, we don't give invoices. Our class was different from what he promised, and we were kicked out of the study group, no different from robbers. I hope all the people who listen to Lin Bai's open class will not be fooled again.