In addition, I asked, personally experienced that there is no class teacher, and the sales staff is the daily contact person, so again, no problem, no dispute is the best, otherwise you really have no place to complain and reason, in the final analysis, it is still a small organization, the process and management are chaotic, and the rights and interests of customers can not be guaranteed.
The consumption of such services should still be compared with several large institutions with good reputation.