Mechagnomes - I'm confused

Okay, i got the achievewment mecha threat on my horde toon, got my ally toon to level 50, went to ally embassy and no quest marker. What exactly is required to unlock the quests now? it’s showing green on both the achievement and being level 50 on my ally toon, no quest is open

Your Alliance character will need to open up Mechagon Island (up to making the dailies available).

I did all the achievements & rep on this character. Then I took my Worgen Hunter and opened up the island. She was then able to do the recruitment quest.