I could have sworn I saw the vendor when I started to play again a week ago. Now I do not see them. Anyone know? I'll try pvp server and see if it's the same. Think that's where I was when I saw it.
The Loyalty Vendor was temporarily disabled in the April 12th Hotfix: https://forums.daybreakgames.com/dcuo/index.php?threads/server-hotfix-april-12-2016.271560/