Domino's Pizza — placed a order and paid through credit card & cash and as well as with e-voucher

Address:

Ghaziabad, Uttar Pradesh, 201011

On[protected] i ordered a pizza for this i paid 500 from my e-voucher i. E - [protected] and remaining amount cash on delivery. But some problem occur and msg arrived that the voucher could`t be redeemed. So i paid through card which was clearly shown in my statement. For 1 order i paid twice through card and e-voucher along with cash to delivery boy. When i called kaushambi ghaziabad dominos outlet they said that your credit card amount will be refunded. I assured myself with there commitment but when the bill generated i saw the amount was not refunded and they ask for the payment.

Please clear my query else next step i will go to consumer forum and show this complaint as a proof an all the related proof that i have