Game Mechanics: kelethin faction not raising?

[erfg12]

I have been killing in Kelethin and went from Threatening to Dubious within 2 days I would say. Not too bad. Now I want to go above dubiously so I can purchase from merchants. However, its been a week now, and it just wont raise no matter how many legions, slavers, and centurions I kill. Can you check if there is a bug with this? I'm worried its not going to raise and this will be a waste of time.