Domino's Pizza — no refund

Website:

dominos.co.in

I had purchased a gift card using little app on 19th of august. Dominos site had some technical glitch because of which my voucher couldn't redeem. Since then i've contacted both the little app and dominos. Little app customer care says that dominos are solely responsible and have even raised a complaint from their end. I've been trying to reach out to dominos but there's literally no response. They always say that a back-end team would contact me but its been more than a week since and i haven't got any response from them, even via mail or call. I would urge taking strong actions so that they don't repeat and treat their customers well. Dominos doing this is the worst thing ever. Contact - [protected]