Hi friend I have used airtel both in prepaid & postpaid and both were big headache
firstly I took a airtel postpaid connection in 2005. this was the my first mobile connection with my lovely Nokia 3315 a what fabulous mobile at that time.
I chose airtel because it was no. 1 in all mobile operator with good service provider in all segment
but I was wrong! yes it was the best in all service but also it was fool me a lot with his nonsense services for that it charged me a lot
I chosen a 250 rental plan which was most popular. so with some adding taxes it was around 300 in first three months but in fourth month my bill was around 700. I was socked to see that. In bill detail I saw that airtel charged me a lot of services which I never took
then I go to airtel store they dont agree to obey me & said that they would disabled all services and next month I would not receive any such charges so I had to pay that bill.
Next three four month all was going ok & my 10th bill was 650 and the cause was same
Again they did not accept their guilt and forcing me to pay the bill but I denied to pay the nonsense bill. I warned them to file a complaint against them.i broke the sim at the store and returned and never pay that stupid bill.
then I took BSNL Connection
and after some year I took airtel prepaid connection but the problem was still same
so many services were automatically stick with my no. eg. Hello tunes, missed call alert, jyotish, etc and I was charged for them.
so port my no. to aircel & happy with that
so my both postpaid and & prepaid experience with AIRTEL were not good