Indiacakes.com - Item not delivered refusing to refund money

My Transaction ID: ******, placed my order on **rd dec **** and it was not delivered. They themselves cancelled the order and said they will refund the amount within * days, after * days I called and they said its not * days it will take ** days to refund the money. Now after ** days they are refusing to refund the money and they say I will get a coupon code for this. I don't want this coupon, I just need my money refunded which they had promised to do. And even the coupon code, they haven't given after ** days. That's how their service is.