Airtel
Balance Deduction

I have a airtel no. which i used very rarely . whenever its not in use i remove it from cell & keep it aside.

then also many value added services are activated on my no. without my permission.

I have complained about this to Airtel customer care earlier & they have assured me that it wont happen again, then why it happen??? Reference no of my complain is CBDCC31028577919

now i wanted to know- how these services are acivated on my no when its not in use& how balance is deduced from my a/c???

i have also sent many mails to Airtel what happens to that?? why action is not taken against it???