Dominos Pizza — money not refunded

Address:

Gurgaon, Haryana, 122002

Respected sir/man,
I ordered pizzas on the 15 september 2018
My order amount was 770. I paid it with my debit card.
The amount 770 was deducted timing 22:43:58
But the order was not placed somehow.
I reordered my pizzas by cod option.
I did get my pizzas on second ordering though i asked the delivery guy about my first order refund, he told me it will be automatically refunded in 15 days.
It's been 25 days, i checked my bank account there's no refund.
Please solve this issue asap.
Thank u