Warlock- can't get green fire with codex of xerrath

Hi,

I am a warlock 120. Bought the tome of the lost legion at the AH for 35k gold.
I opened the book, took the quest, summoned my demons to translate the pages then went to Karosh, my trainer in Orgrimar. I spoke with him and after… nothing. Nothing in my inventory, no more warlock quest and still normal fire skill… I spoke with Blizzard support and they can’t help me much… Basicly, they tell me to get some help somewhere else.

I have unable Addon, relog many time, waited 2 days… nothing yet.
I can’t abandon a quest to get it back, since i have no quest… and nothing happens when i speak with Karosh.

Well, thanks for your help guys… waiting to hear from you to solve this problem that gets annoying.

same sittuation… yet the codex is in my bags… deleted the codex and attempted to restart the entire process only to end up at the same problem… sitting in my bags only to tell me that i have completed the quest already…