Ask your head teacher or counselor (that is, the person in charge of the class you joined) to help contact the person in charge of the backstage to cancel and punch in again. Be sure to read carefully before punching in.
"Perfect Campus" is an upgrade from the original mobile product "Play School" for colleges and universities. On February 24th, 20 19, 19 was put on record by the Ministry of Education, with the record number of Jiao Appbei 4 100006.