Shipment not Delivered but they are saying it is delivered

Location/place: pune

Name of company/service: tradus

I have ordered an one product in tradus.com (online shopping).

Below is product details
D And Y Comfortable Cotton In Brown Striped
Sub Order Id: 6851832
Qty : 1
Price : Rs. 400/-
Shipping Fee : Rs. 40/-
Order Status : Shipment Delivered ###### but i have not recived the product#####
Delivery Date: 2012-12-05
Courier Name: FirstFlight
AWB Number: O20533238

But i have not recived the product & i have made online payment already.
Order Status is showing Shipment Delivered on the site.
Please help me to get the product or money refund.