[Resolved]  Airtel — Airtel problem

Address:

560043

George

I have purchased a number for Rs.3000 and its been registered on my name. I got activated but didn’t’ receive the incoming. I complained to the customer care. Then later I got call from same number which somebody is calling me from Andhra Pradesh with the same number mentioning, that number belongs to him. He is getting incoming and outgoing calls.
I have send several mails to Airtel appellate, they are not responsible nor problem is resolved.
The exact problem is this number is already sold to somebody in AP and same number sold to me. Its registered on my name. I too paid first bill too.
I have been asking Airtel to resolve the problem but they are not doing so.
What shall I do? Shall I sue them or is their any other options?
Suggest please