Airtel — airtel net pack money deducted from bank account, refund still not got

Hello, i'm using your network (3g pack) for the last 3 years. I have recharged for 3g pack amounting to inr.448 through online on 19th feb. 2019. The transaction was failed but the amount has been deducted from my bank a/c. Till date it has not credited back to my account. Once the transaction is failed you have to proper steps to refund that amount. I'm losing my interest for these periods. You cannot expect the customer has to raise a query to you asking refund. Waste of my time and your time. Try to be a customer friendly. The details of the failed transaction status are mentioned below for your reference. Expedite your process. Thanks airtel mobile no : [protected] amount of recharge : inr. 448 date of transaction : 19th feb. 2019, bank name : icici bank, transaction id: sb498800, transaction description : min/bhartiairt/[protected]/251697/