Indian Bank — refund from amazon not proceed by bank in my account

Address:

2/3chandan colony lal duara yamunanagar, Yamuna Nagar, Haryana, 135001

Name - sharwan kumar
Account no[protected]
Reference no[protected]
Contact no - [protected]
I have purchased sobo aquarium filter from amazon on 27-feb/2019 by making payment of 845 through indian bank debit card. I have returned the item and amazon initiated refund on 3-mar/2019 with refund reference number of[protected]. This is my order i'd - ddym8ppsrrma. I visited branch for solution and they contacted billdesk which is the payment gateway. Bill desk is asking to get payment reference number from branch for which branch has no answer. When i contacted amazon, they requested to file charge dispute with indian bank customer care. But indian bank customer care executives denying the existence of such form/facility. It is not about money but about the customer services offered by bank. It is the practical issue and may happen again in future for which bank should be ready with solution.

Kindly resolve the issue