Iphone3g from mobile store
Network fails

I have bought i phone3g yeaster day from mobile store and i have network problem with airtel though it is working with AirTel service.

I had been rinning around both of them and no solution was brought out.

very unfortunate is, i bough this on 25-11 @12.20, and at 3-30PM lodged complaint and theay say it has to be sent to Banglore for service and to wait for 15 days to get it back. Is it fair to have such service for thr unit sold within 2-3 hrs, for having spent around Rs.30, 000/-

when ever a call comes in it gets disconnected, and there will be no service prompt in the signal area and phone gets hanged.

my mobile number is 919866447789

sl.no: number of the phone is86939VAKY7H

Can some one help me out