Rediff Online Book Store — Ordered books not received

I wanted to gift some books to my wife on the Valentine's day, so ordered 3 books (Cheaper by the Dozen, Never Cry Wolf, A Tree Grows in Brooklyn) using Rediff online shopping. The order(Order number 4370794) was placed on[protected] and my order delivery date was supposed to be[protected] in Trivandrum. I made payment of Rs. 1188/- using my UTI bank internet banking. My wife did not receive the parcel on the Valentine's day and I wrote a mail to rediff customercare asking about the status of my order. There was no reply. I checked the status of my order using rediff's order tracking website and saw that the order was approved long back, but the delivery was pending by the Book shop Landmark Ltd in Chennai. I tried calling them up, but in vain.There was no answer. I sent Landmark Ltd a mail asking about the status, but no reply.
ow, i'm in a situation where I have paid Rs. 1188/- for an order and there is no news about it. Please help me.

Regards
Harish