I got a sms from vodafone saying "your free caller tune service has been activated for 30 days. to deactivate sms CAN CT to 144. Any song change will be treated as consent for activationso i sent a sms CAN CT to 144. within a minute i got a sms from vodafone saying as per your request caller tune has been activated. thanks !WTF is this??? So i called up 111 and deactivated from the ivr. now lets see.moral of the story don't sms them back !!!!