Domino's Pizza — my e voucher coupon code is wasted

Address:

Bangalore, Karnataka, 560074

I bought e voucher through little app. While applying in domino's.com the code didn't get applied. I called domino's executive immediately. He said due to bad weather the internet issues came. Please try after sometime. I said k. But then in little app it came coupon code is used. The worth of coupon code is 500 rs. The happened on 20th august 2017. I didn't order anything also. Can u refund my 500 rs coupon