I am currently doing lots of missions out of Tun to climb the Federal Navy rank ladder, and got to Lieutenant last night. According to all I have read, that should have included the permit for Exbeur. All the other rank-specific permits came in on schedule, but this one does not show up in the side panel, and if I select Exbeur in the galaxy map, it still tells me Exbeur permit required.
Has the requirement been upgraded so that you only get the Exbeur permit when you reach Lieutenant Commander, or is it time for bug report to FD?