Vodafone India Ltd — Unable to recharge and postpaid bill on my prepaid Sim Card

Address:	Ahmedabad, Gujarat, 380015
Website:	www.vodafone.in

Few Days ago i have migrated from vodafone postpaid to vodafone prepaid.
They said that i have to clear the bill and i done the same things at vodafone store at Shivrajani cross road, Ahmedabad -Gujarat 380015.
according to vodafone store executive my prepaid card will be activated within 72hrs but it takes more than 7 days and after activation of simcard still i am not able to recharge my number through online .

i have complains vodafone many times but they said there is no problem,
and now they are refusing my number to transfer vodafone customer care.
even i mailed many time but still same issue.

and now they are sending bill to my prepaid number.