I've noticed that a lot of people have that promblem including me. If someone's leveling in Deepholm and have questing issue with Therazane guys here's problem solution.
http://i.piccy.info/i9/0f6f655628fcb...215_163720.jpghttp://i.piccy.info/a3/2015-07-02-13...54x433-r/i.gif
just remove "at war" point in your reputation section
