vodafone's dadagiri.........

 VODAFONE  company has, without letting me know, activated 'vodafone services' on my mobile.......when i got fed up with the useless messages they were sending me under that services,,,,,,i asked the care about the problem,,,,,,they said that i got my scheme activated.........when i objected that i hven't called any such activation.....and i should atleast informed about the service activation,,,they said 'since i was getting those useless messages, i should hve "presumed' that such would be the case...........'
      is it justifiable for the company to, without prior intimation to me, activate any service in my connection....
does consumer forum would be of help..........
what is the procedure initiate proceedings under the consumer protection act,.....pls help............