[Resolved]  Airtel Prepaid — Stoppage of sevice

I am an old veteran settled in Noida. I move to Shimla every summer for few months. I took a LIFETIME PREPAID CONNECTION from Airtel in Shimla to stay connected with my family in mid 2006 on payment of Rs 999. I was told that this connection would be valid for lifetime and that I need to recharge as on required basis from time to time.
My service has been disscontinued during 2007, 2008 and now in 2009. It is only after my having taken a strong stand that the services were restored in the past. I am still fighting to get service restored since 25th April 09, the date of my arrival in Shimla.The reason advanced is that Airtel has changed the terms of providing this service. Airtel has unilaterally backed out of its committment.
Will some one please help in putting an end to this harassment that I am subjected to every year
My Shimla Airtel number is [protected].