How is i2 refund calculated?

Course fee plus teaching material fee, and finally subtract the total fee. According to the announcement of the English Training i2 International Private School, the refund is the course fee plus the teaching material fee, and the final amount is subtracted from the total amount. English is an undergraduate major in ordinary colleges and universities, which is a major in foreign language and literature. The basic study period is four years. , awarded the Bachelor of Arts degree.