HP India
Haven't received gift promissed my HP

I had bought my hp pavillion dv 2002 laptop in July and i had sent all the required documents to the redemption cell and i have not received my gift till now. i called that place many times and they keep on asking me to call next day. they have lost my documents and are not locating it. i have given my courier no. and still they are not finding it.but now i try to call then they don't pick up the phone.

there is nothing happening and hp doesn't look like willing to give me my gift.