I am also in the same boat, several tickets later and still no answer. And I still cannot use my Nightmare Mount I received from a Lock Box. I am at a loss as what to do now, any suggestion from someone from cryptic would really be appreciated as your ticket system seems to be not working.
I am also unable to use my Nightmare Mount, I received it from a Box as well. I have submitted a ticket and hope they can help me out. I will post when I receive more info :-)
So hard to choose as I play mostly Arcane spell-casters in D&D Pen & Paper, but I have decided I would play a Trickster Rogue first as I like the look and style of them.