Airtel — Refund not received in my bank account

I have made a transaction for my order of d2h and broadband of 1500 rupees. Which was cancelled by Airtel representative and refund was initiated. Yesterday I got my refund but instead of getting refund in my back account they have charged my d2h services with it which is not working properly in my area. So I want by money back in my bank account.

Kindly look into this matter.