HP Dv6 7039 keyboard prob

I have purchased hp pavilion dv6 7039 last week *www.thinkdigit.com/forum/images/smilies/icon_surprised.gif
some keys are not working *www.thinkdigit.com/forum/images/smilies/icon_eek.gif
how to get replacement as it is in warrentyhttp://www.thinkdigit.com/forum/images/smilies/icon_confused.gif

Makarand