[Resolved]  Airtel Postpaid — Faulty Billing

My Airtel no. was [protected]. I shifted to Airtel in search of better service but due to some unavoidable reasons i had to get an Aircel connection and hence i filed a request to discontinue the number. The customer care executive told me to clear pending bills and i paid the bill amount on May 14, 2008 (Rs. 1788). The executive then told me that why dont you refer some friend of yours who can take this number and i referred a friend but no executive visited her for 10 days. The airtel customer care executives told me that your request has been filed and the number will be discontinued on May 29, 2008. Since they wanted me to transfer this no. to a friend, i kept the SIM active expecting a call from their executive and then finally stopped using the SIM. Now A lawyer calls up from Airtel and asks me to clear the pending bill of some Rs. 1000.
I have always been a law abiding person and paid all the bills religiously. But why should i suffer for non response of customer care division of Airtel?? Can you please suggest a forum where this issue can be raised? I dont want to spend my hard earned money for company's inefficiency.