No charge. According to official website's inquiry, Chongqing Education Bureau, the city's public ordinary high schools are not allowed to hold repeat classes, not to jointly hold repeat classes with social institutions, not to hold repeat classes in training institutions in the name of schools, and not to recruit repeat students. Chongqing Yongchuan Changnan High School is a public school, so Chongqing Yongchuan Changnan High School does not accept repeat students.