Airtel — airtel service provider mnp

I opted for mnp from tata indicom to airtel prepaid connection. Due to incorrect info taken by store lady, im facing isues. I had been to the airtel store in madhapur 7 times till now, how ever i still did not get my prepaid sim activated. They keep giving false information that it will be done in few days. Don't make a fool of the customer. Horrible.