Airtel — false promises about free amazon subscription for an year.

Address:	Bhopal, Madhya Pradesh
Website:	airtel.in

I subscribed for Airtel's broadband connection, with which, they promised to provide one year's free amazon prime subscription.
I have been calling the Airtel employee for about 2 months and he's been giving excuses and not providing immediate help or information.
The helpline numbers the company has provided just plays the same recorded messages which are very frustrating.
I am very irritated with this behavior of the employees and the company.
I want immediate response and compensation or else I'll have to take further actions.