Airtel & Gpay — recharged twice

Address: 24-B Toovipuram 10th street, Thoothukudi, Tamil Nadu, 628003

I recharged my mobile no with ₹399 and it didn't showed recharged, payment failed but amount was deducted. So i recharged again with 399 on the same number and i recieved the confirmation message of the first just before second recharge was done.in short done same recharge of 399 on same number twice. When i asked the customer care people and even gone to airtel store to either refund or to extend the validity they refused me to do so. As in reliance jio if anything like happens by chance they with continue the next recharge after the first one is over i. E double the validity of the pack. But there is no such facility given to me on airtel. So i either want refund of my second recharge or increase my validity.

My transaction i'ds
First recharge txn id[protected] at 4.27pm on sunday
Second recharge txn id[protected] at 4.29pm

recharge done twice of 399
Kindly do needfull