Airtel — double payment of bills

Address:

Mumbai City, Maharashtra, 400055

I was paying my bill of rs.335 from airtel mobile app. On first time of payment i didn't get an update so i did second time again. After that i got a message of amount being deducted twice from my cbi account... Please refund my excess account. I haven't recieved any update from airtel side regarding my payment. Hope to see resolved as soon as possible