Nikon Coolpix P510 Camera — I didn't receive product from India plaza

Address:

Tumkur, Karnataka

Hi Sir,
My name is Swaroop.K.S. I purchases a camera (Nikon coolpix p510, order ID (I[protected])) online from Indiaplaza.com. I purchased it on 9th feb 2013. I didn't got any updated on my product delivery from India plaza till today. I had paid complete amount through creditcard . Customer care number is not operational. I raise many compliant tickets in there site . but no respose to any of my tickets . I applied for cancellation of product . I visited there office in 2nd Floor, No: 21, Brigade Square, Cambridge Road, Halasuru,Bangalore - 560008, Karnataka, India three times , its closed. Please help me in this regards. Please help me to get my money back or product i ordered . Please help me in this regards.

Thanks and regards,
Swaroop.K.S