I keep reading unanswered posts about the above-stated topic. In the response to the various queries, nearly every post has a version of "Go here to see if you qualify for a free upgrade: Upgrade Adobe Designer from Acrobat "
I have had Adobe Acrobat Pro from v.6 to the current DC version. A couple of times the upgrade came via a Collection (i.e., CS4 Design, CS5 Master) and I have had a Creative Cloud subscription since CC was first available.
Why am I not eligible for the free upgrade?