Reliance Communications — refund against deactivation of number

I had got my number [protected] deaactivated on 08/08/2009 under case ID[protected].I had paid an outstanding amount of Rs 350 against the dues (Reciept Number S[protected].I was told that the number would be deactivated within a weeks time once the confirmation call is done on my alternate number.The same was done within next 2 days but I kept on recieving the bill for next month also.I contacted Reliance customer care and web world and I was told that the number has long been deactivated and there could be a system error due to which I have been recieveing bills.I was assured that my refund of Rs 250 would be processed within next one or two months and would be send to me at my mailing address.
I recieved a refund of amount Rs 23.28 against Rs 250.I assume that the amount dedeucted from my refund is against the false bill which reliance kept on getting generated even though I had deactivated the number.This act amounts to cheat and malafide practises by the organization.i have also highlighted my greviance to the nodal officer and am still waiting for his reply.

regards
Ashutosh