I am using Tata indicom prepaid. In April 2011 they have deducted 150 Rs for automatically connected to 12900 which I have not used. Again today 8/6/11 they deduct 30 Rs for automatically subscribing me some SMS seva which I have not requested. I am already frustrated of deleting their unwanted promotional SMS and attending calls. Additional SMS will give me more frustration. I have not expected this from company like TATA.