Malabar Gold & Diamonds — Refund not issued and product unavailability

I have had the worst experience with the MALABAR GOALD AND DIAMONDS online site. They are complete FRAUDS !!!
I had ordered an earring through their site. I did not receive the product on the expected delivery date. The reason they gave was that the product was not in stock!! Why was the product on display then? They asked me to wait for a week and I did that. Then when I asked for the refund they said that they have initiated it but I did not receive any kind of mail confirmation from them. I have been continuously following up for the past 2 to 3 weeks. Please help me out. Now the customer care is extremely rude with me. They have blatantly asked me to go to the consumer court and file a case.
That is how confident they are. They know that this will buy them more time. I want to my money to be refunded!!