Allahabad Bank — Amount deducted but neither credited to the beneficiary nor refunded

I made a payment of Rs. 319 to flipkart through PhonePay on 13/11/2020 at 02:01p.m, amount deducted but not credited to flipkart due to some technical error on flipkart side so i had to make another payment of Rs.319 at 02:51 p.m. which was successful. But the first amount which was deducted but not credited to flipkart need to be credited back in my account but after so many days and after writing so may complaints to allahabad bank, i didn't receive any refund. Flipkart customer support team is saying that the payment was unsuccessful so they can't do anything, PhonePay is saying that after the amount deducted from account bank does not allow them to credit back. If that amount is not credited to flipkart then why bank is not refunding it?