Domino's Pizza — refund my money for non delivery of items

Address:

600094

I placed my requirements in online on 27/12/18 at nelson manickam road restaurant, chennai, my order no is 118 and the delivery time is 8/45. I received a message at 8/50 the ordered items were delivered, but no body came for delivery i was in the home. I waited up to 9/15 pm no body came then i went to the shop and asked about the delivery they said the orginal delivery boy given the stuff to other boy he will deliver it, since it is too late i ask them to cancel the order and refund the amount.
They said it will take minimum 7 to 8 working days to credit.
I am totally unhappy about the restaurant functioning, kindly refund my amount at the earliest
Thanks