Airtel — Problem in Incoming call

Address:

Chhattisgarh

My mobile of AIRTEL SIM does not allow any Incoming call, if it is not in use for 2 to 3 hours i.e. if there is no outgoing activities like o/g call or sms etc for 2-3 hrs, the caller receive a false msg that the mobile is in switched off condition even though my mobile is in switched on condition.This is happening even after inserting the SIM in different makes of mobile set.First I contacted customer care and they lodged a complaint vide ref COGCI[protected] date July18, 2011.On July 20, it was intimated that the problem had been resolved, however the problem was persisting.Then I made communications with Bharati AIRTEL Nodal officer through e-mails, phone calls etc till July27. Since there was no improvement hence I communicated Appellate Officer of Bharati AIRTEL and he confirmed that the problem would be resolved by August17.However, till today the problem is persisiting and no communication has been received from him.Now I am feeling helpless since I donot know to whom should I contact when Appellate Officer also failed to address the problem.As per TRAI website I could not find any contact to communicate, in case Appellate Officer also declined to solve the problem.Kindly guide. DEBAYAN SARKHEL +91-[protected]