Airtel — payment refund is not being initiated even after calling several times

Website:

www.airtel.in

I had requested for a new broadband connection and made a payment of rs. 7884/- through airtel's website (www.airtel.in) on 3rd june 2018.
A week after making the payment i got a call from airtel saying the package i was interested in could not be provided to my location.
I asked for refund and provided the transaction id, caf number and my registered phone number. They said the refund will be credited to my account in 7 days. I called them a few days later
To check up on the refund status and the customer care executive said that they are not able to access my profile
And refund process has not even been initiated. They are saying this after 5 days since i asked for refund. Now i dont
Know the status of my payment and they are not even acknowleding that i have made the payment. I even called the
Executive who came to collect the document and he is just asking to talk to customer care. Now i dont know how to get
Back my money. I am providing the details here, if airtel is reading this, please improve your services.

Caf number: 80138786
Transaction id:[protected]