Airtel — I recharge on my father's number which was already recharge

I made a recharge on my father's number by mistake which was already recharge, so i request for refund. I made the recharge of 399 from google pay to airtel number : [protected]
I am referring the screen shots so please help me out with refund on the same account.
The account details for refund is:
Account number: [protected]
Ifsc code: hdfc0000036