airtel Cheated me

My name is RAMESH and my mobile no is 9967443905. I was using this card

for more then two years I would like to mention that it?s a life time

validity card. From last 25 days I didn?t use this card so when after 25

days I used this card it says sim card registration failed when I

contacted airtel relation ship center they told me that your card is

install and given to some one else. When I contacted nodal officer he is

telling due to address verification we have disconnected your sim card.

The main thing is that my card contains a balance amount of 6730.80 so

when I asked what about balance they told me it?s gone now. Airtel had

cheated me and they had taken such a big amount from me because whenever

the card disconnect it?s not given to some else up to 6o days. If they

want they can check the data base and help me but they don?t want to do

this. I think sunil mittal is becoming rich day by day by cheating like

this only. Plz help if you can