LazyPay — Refund not credited

I have transacted Bajaj fineserv app using lazypay card. The transaction was failed but money got deducted from my account. The transaction date was 28 December 2021. The transaction vale is rs 934. The refund amount was not credited to my account. I have contacted regards this with Bajaj fineserv app. They have informed us that the have not received any amount for this transaction and the amount still in your bank side and inform to contact bank regarding this. Kindly check this issue and refund the amount. They too lazy to solve the issue. I have done a lot of emails to the team no updates
Order id - TXN[protected]
Dot- 28 dec 2021 4:39 pm