Now there is no guarantee that the education reform will be stricter year by year, and there are really not many such institutions that can't get the certificate and want to return. Before, my brother applied to a university of Hanyu Education. As a result, the national policy has changed, and this school can't take the self-taught exam. My brother didn't want to apply to other schools, and then Hanyu Education refunded all the fees. It's not bad for an institution that can refund money, and it's almost impossible to guarantee it.