Airtel — fraud recharge trap

I had recently applied for a port from airtel to idea. The representative from airtel called me to ask the reason for port. I told about the network problem in my area. The representative assured that my network will be excellent soon and requested me to stay in airtel and appealed me to recharge. I accepted to stay with airtel and did a recharge of 300 rupees as full talk time.
But the next day my network was cut off. When enquired with sim dealer i got to know that i have been ported to idea.
Is this what is the reward for trusting airtel?
I request airtel to refund my 300 rupees to my same paytm number.