Integreon Management Solutions (I) Pvt. Ltd. review: No network connection

I am Pravin Acharya residing in Mumbai. I had taken Airtel prepaid connection [protected] on Sunday 1st July 07. I had submitted all my documents on the very same day and from Tuesday 3rd July 07 my network is down completely. On Screen i am getting Airtel but net work full down. If i put the card in some other cellphone i am getting message unregister SIM.