Airtel — highly disappointed

Website:

Airtel.co.in

I ported from vodafone to airtel. My number is [protected].
They gave me 1 sim card to use after 5 days and then again they came and delivered new sim and asked not to use the old one.
My number is now working now because the first sim is activated which i threw as they said.
When i called airtel today they told me its my fault i lost it.
They said i willl not pass the call to manager
They said they cannot call me back
Only option is to wait 72 hours to get new sim activated