Ovenstory Pizza — refund for an undelivered food item

Address:	Chennai, 600032
Website:	Find this restaurant on Zomato | Ovenstory Pizza, Nanganallur zoma.to/r/18500690

On 15th Aug 2019, I had made on order from Ovenstory Pizza in Chennai. They called and said order has been cancelled and refund will be processed within 4-5 business days. I waited 5 business days for my refund and did not receive it yet after a week too. Also, in the history it shows the food item has been delivered. Please resolve this issue Zomato.