airtel looting people..i had 98 rs plan activated and had some 153 mb left in gprs account. as usual i checked my gprs balance and then surfed on phone..but after some time net disconnected and it showed 0 balance... even the main balance of 194 rs was deducted.called cc they said it has been used... they just dont listen.even some of my friends had same problem,they stopped using airtel gprs.i am absolutely sure about my usages. have been using airtel gprs since its launch 10 yr back.so i know how much data i use.few days before they even deducted some 50 rs for clicking on hungama service.. which i didnt cklick at all.please help me what to do to these looters.if Mobile Number Portability is the only option then please suggest a good operator that doesnt charge roaming between mumbai and maharashtra?