[Resolved]  Airtel Prepaid — remove hello tune

i am prepaid user of airtel having mobile no. [protected], i have promotional msg from airtel while checking my balance that if i dial[protected]toll free), then check the new songs and may select from them then company will charged rs 15/- for monthely charge and rs 5/- song selection. but during this i have selected no song, further i have received promo for this hello tune for dial a no. 578787. i haved dial agin this no. for hello tune, but no song my choice is available, then i have disconnected tha call,
but after some time i have received a msg for activation of hello tune and my balance has been diducted, what is this nonsence? if i dial a free no. that not mean i have selected any services, , this is your dictetarship to follow the rules of your own, it is good or bad.
while i call to customer care complaint service no 198 at 11:17am, exective did not give any solution and told me that you have not any type of knowledge to operate your mobile, you selected a hello tones, and some arguments are passed from each other and we abused few second, but they provide no solution.
i am very fed up from ur service
plz rectify my problem