Excuse me, are the health managers in mathematics and science education reliable?

Hello, landlord, I signed up for the study of tree science education and got the certificate. They are also responsible for recommendation. I was also recommended by them to do health management in Hohhot. The income is also good. Several teachers give lectures, including Wang Peiyu, Lu Qing, Yi Lian and Wang Yanli. They are all famous teachers in the industry. You can go to official website to attend all the courses.