D-Mart / Avenue Supermarts — Tried to order over the same order number. Double debit, order got cancelled and there's no reversal till now

I tried placing an order 25th August in the morning. The order number 20202016 faced a payment failure hence I tried paying again and it was again a fail. I used the UPI mode of transfer. However, there was twice a debit of Rs 1373 from my account. My bank account in total processed 2746 debit while gpay too showed a successful transfer. It's been days I am trying to connect with your customer care for a reversal as I need the money to buy essentials and it's difficult for me. But there's no positive response nor is anyone acknowledging my email too. All I get is that we haven't received the money. I have proofs that the money is transferred from my account to yours and I don't know why there is a denial. It would be great if an immediate action is taken over this request. It's the matter of how you care about your customers!