Airtel — regarding my refund against broadband

Address:

Ghaziabad, Uttar Pradesh, 201014

Dear I used to say that I want a broadband connection from airtel on 02/08/2018 and will pay to airtel on 02/08 amount of 2998
He commit me the speed of 8 mbps but at the time of connection airtel tell that only 2 mbps speed been possible
So I refuse for the connection i request for refund on that very 03/08/2018 they tells that refund been made but till today I can’t receive the sum amount when I call on 18/08/2018 executive tells me that refund been initiated on that very day
When today I call customer care executive they tell me that there is no any refund been process
How I believe any
The only way of my refund is to way of consumer court