I go to the web site indicated on the sticker to claim the prize

I went to the site www.modpromotion.and there is NO PLACE to enter the winning code (W6VXV1XLZ1XW) for HYPERXGAMING HEADSET which is the prize I received when I peeled the sticker of my hamburger. This mod promotion has dozens of sites trying to drum up business but no spot no site for claiming the prize as specified on the sticker and your rules for Monopoly. This smells like a really good scam If so SHAME ON YOU McDonald. TELL -I don’t know how exactly how to claim the prize if this is not a scam or attain the prize for me and If necessary I will pick it up locally or pay for postage.