Airtel
SIM card is not working

Sir,

My name is Anand Kumar katakam.

i got a Airtel number 9618154838.

I used this number last time is on July 2nd. Recently i came from abroad. And my mobile has the balance amount. I tried to insert my sim into my mobile but its not working.

I would like to use the number now. Can you please reactivate my SIM.Otherwise i loose many contacts and losse my business in india..

anand