RebatesHQ doesn't update their online pre-registration for new rebates very often.
It will show up eventually, but it might take a couple of weeks.
I'd recommend just filling out the PDF form honestly, unless you want to wait.
Chatted with rebatesHQ CS. Was suggested submitting rebate via mail. Was told the online registration form setup could take weeks. Duh!
I think we should all chat with or call them to give them more pressure to expedite the process.