Airtel — broadband plan not upgraded

My broadband bill plan is constantly being delayed and rejected. They have made me wait for months. Every time i talk to 121 they tell me it will be done within 72 hours, then they tell it will be done within 2 weeks, then they tell again 2 weeks. And then they say that it’s not feasible at the moment since there is no fiber wire available. My neighbor in the same area got a new connection from airtel of the same bored and plan that i want.
Since i am on the old bill plan that pays more than the new bill plan, airtel 121 team does not want to upgrade my plan. I am fed up with airtel. They have been harassing me for soo long.
It has been more than a year of 121 talks and nothing is accomplished.