I am experiencing this same confusion.
I bought and activated the Absolute VST Collection on 4 July. In fact, my license ALREADY says “Absolute VSTi Collection DL +”. That is why I think the “Grace Period” checker says we are not eligible… Because we already have the license. So, I submitted a support ticket to get a download link.
This is the response I received.
“A Grace Period offer is not available for the Absolute VSTi Collection. You can purchase the Absolute VSTi Collection to HALion Sonic 2 upgrade for $99.99 from our online shop…”
I was really hoping to try it out tonight. I sent a reply to support. Maybe tomorrow…
EDIT: Here is another reference to the Grace Period update…
With the release of the HALion Sonic 2, the Absolute VST Instrument Collection gets an extra “+” in the form of a free update to HALion Sonic 2. All customers who have purchased Absolute after May 15, 2013, are eligible for a free Grace Period Update to HALion Sonic 2.