On 28 feb 2010, Rs. 30 from my phone balance has been cut and I got the message from 12900 that your voice chat pack has been activated although neither i received any call for activating voice chat pack ( thus it is not possible that i pressed certain button on keypad by mistake and it was activated) nor i sent any SMS to activate this. when i called customer care one customer care executive said that i activated by SMS and when i talked...