I am a guardian of the school's student, who pays the tuition. As she is taking light term, the tuition should be 6,000 or so. But this online has charged almost 20,000, which is regular for 4 months term. Soon it turned out I had to pay as much as 20,000 1st to avoid late fee, and be refunded. They refunded the difference in 2 weeks. Do I have to appreciated it?