4)Airtel used to activate the caller tunes without asking and I had to fight to deactiviate every time they started without even asking. And it takes days and days and even months reminder to take it off.
5)Sometimes the plan used to change automatically without being informed. they were no choice given which plans to take.
I wish I could change the number but it has gone to so many ppl that it becomes impossible to change even if you wish to change the service.
I think TRAI should provide a universal number across all the Service Companies if they really wish that customers get the better service. Otherwise the Mobile Service will continue to harass common people all the time