Upgrad — Refund application

I enrolled for a course in upgrad for Rs 25000. which they said they will start on Jan 31st, it got started on feb 15th. then i appiled for refund, my sale agent o[censored]pgrad convienced me not to go for refund. then after started of course, i got cheated again, she said i will have pre recorded videos and proper schedule (hours per course) but in reality it is only saturday and sunday live classes. then i asked for refund again. then vinet their agent promised me he will refund 15000 but not 25000. i said ok i will adjust with 15000. now again they say i wont get any refund. as i applied after starting of course. but starting date of course in feb 15th . please help me in getting my 25000 back .