There must be pyramid schemes. I visited a round table and felt warm and concerned. I signed up for a Japanese class and was asked to pay 16500 RMB on the spot. It was in the middle of 17 and 10. 19, I suddenly remembered this thing. For more than a year, no one informed me of class. I called my contact and said that someone contacted me in September, 18, but I couldn't get in touch. There is a world of difference between the urgency of marketing and the casual attitude of delivery after payment. I decided to ask for a refund. After many times of coordination, I finally got a refund at the end of February. Only 1 1550, 70%, was refunded.