Reliance Communications — deduction on the name of bwoodmania 21 service

Received sms on my cell [protected] stating "you have been successfully subscribed to bwoodmaniasub21 service for 7 days." to which i had never subscribed. Immediately unsubscribed for the same and later again got the same sms. This is the second time its happening now my talk time balance is rs.0 (Zero).
Reliance is using unethical ways to extract money from its subscribers.
Feels its better to switch over to some other network as reliance is interested only in looting people and not in providing services.