Airtel — No network after porting number to Airtel

I have ported my number from vodafone to airtel recently. Yesterday after my vodafone service stopped, i inserted my new airtel sim for activation but just after few seconds of insertion, the network in airtel sim stopped coming. So basically i am doomed in short. I have all my banking and business associated with this number and since no network is getting displayed i can't to anything.
Please ask your support people to contact me, as i have tried reaching you guys from my end multiple times. The customer care people could not resolve the issue.

If this doesn't get sorted soon, i have no choice but to take some legal actions against you guys. Please don't make me regret my decision of porting to airtel.

Transaction reference no.(CAF no.) A13A0UVF84. We will keep you updated on the progress. Please clear all unpaid dues of current operator to avoid any inconvenience after port-in.