Pizza Hut India — no refund against cancelled order

Address:	Thane, Maharashtra, 400607
Website:	Pizzahut

I had placed an order (Order number:8498109) on 18th june at pizza hut by selecting my address from their list (Vijay nagari, waghbil naka, thane west) and paid via credit card. Then i got call from the store at cinewonder mall saying they will have to cancel the order as delivery location is outside their serving area (Strange as they decide store depending on address you enter and you can only select address from the list they have). I was told i would receive paid amount back in 21 days. I called store after 1 month as i had not received any amount, the store manager promised me to process it within next 10 days which was also not fulfilled. I have made multiple calls to them after none of their promises were fulfilled and i never got back the money. The store then stopped picking call.
I have also tried registering multiple complains on their portal but of no use. Same goes for their help support number.