MakeMyTrip India — Not providing my refund

Its been 55 days since the airlines cancelled the flights and i have cancelled the same on make my trip, but till now i have not received my refund till now even when government said people will get full refund from airlines, after 55 days today someone called and emailed from makemytrip saying there will be cancellation charges and whatever is left will be credited to makemytrip wallet, first of all we are accepting cancellation charges upon that they are not offering my refund to original mode of payment.. Please help me get my refund in original mode of payment..