Unfair balance deductions

Location/place: Burdwan

Name of company/service: Reliance Smart

My mob no is 8927851165.This is a reliance smart no.From this year I am facing a particular problem repeatedly.Earlier rel used to deduct 30 rs any time and they used to give explanation that I have somehow activated it.But from this year a new tactics they adopted.in each 15 days they are deducting my balance by rs 3 in the name of USSD service charge
1..first 23 Jan2013.on repeated req I came to know that this deduction is done when a customer dial a number with star(*)other than any toll free number.I thought may be I have unknowingly pressed it.But there was no number in my dialled list.
2. Again balance deducted on 15 th Feb 2013.Same explanation given by customer care representative.
3. Again on 2nd March balance deducted for the same reason.
4. Balance deducted on 24th March,2013 again.Reason same.
5. on 14.04.2013 balance again deducted.
6. on 19.04.2013 balance again deducted for the same reason.
7. today on 23.04.2013 balance has been deducted at 10:39am.Reason same.
Thus I am feeling irritated and helpless.From second time I was very much aware of the deduction taking place.I kept an sharp eye on this matter.Each time there is no no. in dialled list.So I came to conclusion this is Smart’s another tricks to deceive the customers and profit more. 5 out of 7 times I argued with Customer Representative and they refunded my balance immediately .But now it’s too disgusting.And one more thing,when lance is deducted,surprisingly the whole day my line to customer care get busy.So its almost impossible to contact customer care on the same day.
Please help.I a sure many more persons like me are also facing the sameproblem.