Product not delievered and even the customer service doesnot respond

Location/place: kharagpur

Name of company/service: snapdeal

Dear Sir/Madam,

Order ID – 939582780

I have not received the product till now (order date 10.04.2013), even no response after making a complaint. I dont know what is to be done now.
This attitude towards customer is totally pathetic and unsatisfactory. I am feeling that I made a mistake by making an order through snapdeal (it was completely unworthy).