compaq presario SR5160IL / yet not received the due gift after 6 months

sir,
i am ishwar dutt pathak from allahabad. i have purchased a compaq presario desktop pc on 20/07/07 from city compaq systems allahabad. the model no is SR5160il and its serial no is INI75400KD.AT that time the scheme was going on that a gift of hp headset and webcam will be given to the customers who purchase the model of compaq presario.for that i have sent the rs200 draft to hp redemption cell for receving the due gift and yet now i have not been received it and on calling they are not giving me the sufficient information about my gift.
the redemption code is CZXZSHD7UK
REFRENCE NO IS CA0430836. PLEASE GIVE ME THE REPLY

YOUR'S FAITHFULLY

ISHWAR DUTT PATHAK