Tata Photon Plus Data Card — For change data card due to it is defective

Address:

Chennai, Tamil Nadu

I had bought a Tata photon plus data card from Sairam communication Potheri on 28th march 2011.after ten days it is not connect , I had visited shopkeeper , she had checked it but not success to connect it.

She has told me to go customer care point Tambaram. I had visited two times but they can't do anything , I know the problem is in data card but they are not want to change it. what can we do in this case , actually i have decided to go consumer court finally,