We were running the 2016 trial, which expired. Our application is currently a bit crippled. Now trying buy the 2016 version or extend our trial (a week or so) until we have time to plan a migration to 2018. We have already purchased 2018. Any help would be fantastic. I have spend over 3 hours trying to reach someone to talk to. Submitted a support request via chat and they said I may not receive a call back until tomorrow.
You have a retail license which is not eligible for downgrade to CF2016.
We have asked one of the re-seller to contact you for volume license. You can return your existing retail license and buy a new volume license and ask for downgrade on firstname.lastname@example.org