Reliance Fresh — Billed twice for Purchase

I purchased groceries on 25th June 2022 at Reliance mall - Iyyapanthangal for Rs.2093.22. I used PostBank (DakPay UPI) for the payment. Reliance Employees said the transaction was not successful even though my account status is updated as 'successful' and forced me to repay again using GPay. They promised that amount would be refunded within 2 days from the server team but i haven't got any.

Details of First - Payment:

From UPI ID: sridhar.[protected]@postbank
To UPI ID: RELIANCESMART.[protected]@hdfcbank
Beneficiary: Reliance Smart
Ref No:[protected]
Date: 25/06/2022
Time: 12:01
Amount: 2093.22

Details of Second - Payment:

UPI Transaction ID:[protected]
To: Reliance Fresh (reliancesmart:[protected]@hdfcbank
From: ANALA S(HSBC) anala.[protected]@okaxis
Google Transaction ID: CICAg0DfnMmyHg
Date: 25/06/2022
Time: 12:16
Amount: 2093.22

Kindly help me get my refund