Airtel — sim not activated from last 1 month.

I have ported my number from reliance to airtel on 14th November. Reliance have closed it on 16th November and Airtel have still not ported my number. Whenever you call airtel customer care they will tell some new nonsense and will tell that your service will be started within 24 hours.
And its been 1 month that they are harassing me. This is my business number and it has affected me alot in my business. Even i have paid extra amount to reliance when I chose for port so that they dont do any tantrums. And it is my biggest mistake that i have done to port it to Airtel, I think.
KINDLY HELP ME OUT.