Vodafone India — Postpaid to prepaid portability issue

Website:

www.vodafone.in

I am using vodafone postpaid services from last 4 to 5 months now i have given them documents to port my number in to prepaid.
But they are not giving me proper answer. When i call them on their customer care number, they tell me to visit vodafone store after that i have visited vodafone store 4-5 times.
Now scenario is that my permanent postpaid number has been blocked. My prepaid number is still not activated.
I am not even getting satisfactory replies from their executives.
I have 10 postpaid cards, i want to port all of them, they told me that
Porting all of cards at the same time is not possible u have to port 3 cards at a time. I am being charged for my other 7 cards.
Please consider my request.