One97 Communications — idea deducted my money without my knowledge

Just now i got message from idea like this

Thank you for giving your consent in activating sports voice alerts on your mobile, you will receive an obd call with sports updates. Charges of this obd will be rs.5/-

Dear customer,
Thank you for downloading sports from one97.
You have been charged rs. 5
Your balance is rs. *

... Its like shut idea service... Decting money like this verybad... Not sure why this people doing this... Instead of taking customer money like this... Beg on roads...