IDBI Bank — re fund

I visited in kodaikanal dominos pizza (26 th may) and pay may bill through my debit card amount 136 rs, but that amount was debited, but that time that machine showing same error. So they asking cash so i pay that amount to paytm. And they are told that debited amount automatically refund in 7 days. But till now i can't get my refund. When i get refund