Asus India — Asus hard disk 1TB

I purchased a laptop from asus in the month of january. Through which i got offer to purchase 1tb hard disk at lower price than usual @1599. I ordered my hard disk in the month of february and i still (On 27th august) haven't received it. After the month of march i never got reply from the asus promo id which was given on the website through which i purchased my product. So, i contacted the main asus call center and they told me to contact on another email id. That mail id which they gave me to contact sales team for status of my product never responded. I haven't received any reply from there side.
Now i'm really tired of contacting them again and again. I ordered my hard disk in the month of february and i still haven't received it.