Relience digitals - Refund not received even after 42 days

I purchased Godrej Refrigerator on *st November **** from Reliance Digital Mall, Vasai West. I paid the quoted price of Rs.*****/- for it. Next day delivery was received but I was given only Rs ***** invoice at that time. When I inquired about it in Reliance Digital Mall, I did not get a satisfactory reply. Instead of Rs, *****/-I got a receipt of Rs *****/- which is really objectionable. So I canceled the order and asked for a refund, then it was told that I would get it in ** days. But in spite of repetitive calls and reminders, today even after ** days I have not received the refund.