Domino's Pizza — Regarding refund of online payment

Address:

147001

Dear Sir/Madam, I am Rahul Jindal from Patiala, Punjab.I placed an
order on 16th Dec, 2015 through dominos official app.But after i paid
Rs.733 the gateway crashed and order got cancelled.Again i tried but
failed to same result.After my 2 orders didnt get placed but money got
deducted, I chose to place the order via calling and cash on delivery.I
got the pizzas finally after much effort and enjoyed it.But i was
still worried for my 1466 that got deducted.Thankfully, I recieved one
order's payment of Rs.733 while I havent recieved the refund of
second.I was told by customer care that amount will be refunded within
7 working days but to date it has been 15 days.I tried calling
customer care but i havent gotten a satisfactory response and I am a
little worried about it now.Please see to it that my hard earned money
gets refunded.I am attaching two images below, one being of my bank
statement and other being dominos order history.