Cant buy heroic key

I'm honored with Honor Hold and I can't buy heroic key , do i have to finish all in normal mode and get the heroic key ?

need revered afaik

You need revered for Heroic Keys as we are playing on Patch 2.1 content. When 2.3 (Zul Aman) hits the reputation needed is lowered to honored

You know, that big red text you get over your whole screen can give you a hint - something like "You dont meet required reputation to purches that item"