Indian Oil Corporation [IOC] — LPG refund

I had booked a cylinder refill on 20th January. I made payment via PhonePe UPI through my Bank of India account for 720.5 rupees. They said the money has been deducted and I got a confirmation for the same but Indian oil says transaction not successful.

So I called their customer care who said to make another payment, which I did of the same amount and the booking was successful. their app shows a refund initiated on 20th January itself along with unidentifiable cash paid transaction on 21st January.

Till date, i have no received any refund. Indian oil customer care refuses to help me and keeps disconnecting my call. The gas agency says this is Indian Oil's problem. PhonePe and Bank of India both said to contact Indian Oil.

Please see attached images of transactions and bank statement below.