Domino's Pizza — Non delivery of pizza/ money not refunded

I had ordered Dominos pizza at ioc guest house Sankey road opp. Bangalore golf course, Bangalore on 5th june of Rs 747.paid by hdfc credit card, It was delivered after more than 2 hours.I cancelled the order the person ensured the money will be credited in 3-4 days .I have not recd money back. Pl see and refund the money. ph no [protected].I kept ringing and everytime I called, I received assurance of the person coming in 5 minutes. My son wanted pizza for lunch but we had something else as the pizza reached after 2 hrs of ordering i.e in the evening around 5.00pm. I am shocked that the refund of money is not credited as the order was and could only be cancelled through phone. We ordered through mobile app and online cancellation on mobile was not possible...