MakeMyTrip India — Refund cancelled

My booking I'd -NF762Z6N2L3HE18M6892
I have booked a flight from Mangalore to Bhubaneswar for February 4 but the flight was rescheduled and I was given the option of I can take the rescheduled flight of cancel my ticket and get full refund so I cancelled on January 08 and today I got the message from make my trip that I cannot claim any refund and the refund status is closed but at the same time my friends also cancelled but they booked through different sites and got their refund then why I didn't .so I request to look through this kind of fraudulent work from make my trip and process my refund