Delhivery — UPI transaction double payment, but fund not refunded and no customer service.

On november 1st i got a delivery from amzon through delhivery. It was a COD order but i paid through my bank account upi and it failed and the agent told me the payment is failed i should pay him by cash. But the amount is taken from my account. Its the 20th day the amount is not refunded. I enquired with bank and they said amount reached beneficiary account. Please give me solution for this. I was calling their customer care number from the day of transaction but no use.
My mobile number : [protected]
Beneficiary : Ac No. [protected]
Ifsc : UTIB0000000
Upi id : delhivery.[protected]@axisbank