BSNL — Deduction without subscription

Address:

Rajasthan

Dear sir mam,
I am bsnl prepaid user since 5 years my mob no {[protected]},on 23.08.12 at 8:07:34 pm I received a msg from the no:[protected] containing{thanks for subscribing funtoosh pack from handygo at 23.08.12 at 07:55 pm for rs 8 .Valid till 30/08/2012.To unsubscribe send unsubfun to 55678}
I have never subscribed to any service .This is a cheating done with me, rs 8 balance has been deducted from my balance.
In this context what help you can do. Otherwise, should I go to consumer court ?
an early action is appreciated.

With kind regards,