Bug in the sons of hodir

I can´t do any missions of "The sons of hodir", Also I can´t buy or interact with any of them. I have 'Exalted' reputation in the sons of hodir. I want to finish an achievement that started a long time ago and well I hope you can help me... since the achievement is to do all Northrend missions.
Thanks for your time
Feiklon
Server: Warmane- Frostmourne

First this is not a bug, you need to complete a long quest chain to unlock their vendor and their quests. I can confirm everything until vendor discovery works as last time i did it on my 3th character was like a month ago.

You start the quest chain in K3, usually if you get your rep that way, you will know when you unlocked the vendors because you would become exalted with SonS of Hodir at this point.

I presume you exchanged badges for rep, but being exalted does not open their quests nor their vendor.