Vodafone sends you SMS saying caller tunes / International roaming (similar paid services) are free for a specific period. If you do not deactivate the service by yourselves they start debiting you every month. I am a prepaid customer and I was abroad for a long period of time and they have been charging me for caller tunes every month whereas I never asked for it. Similarly they have sent me SMS for Intnl roaming is free till Sep 12 and they will deduct Rs.99 every month if I do not deactivate. When I called the customer service, he put me on hold for 20 minutes saying he will check my status and I was fed up and disconnected. How can a paid service be activated without the paying customer voluntarily asking for it ? Their site has no facility for prepaid customers to manage their services. Neither there are no instructions for deactivating services other than calling customer service.Customers - beware