Unfortunately I already did pay for carrerwebschool RE class and unfortunately I've had the same experience as you did. I haven't taken the exam, but the course is so poorly written that I think I will have to study some other materials to pass any exam.
They took three weeks to answer few of my questions and I had to call them four times for that. Their reasoning was that my questions were outside the covered material and therefore some research was needed (who are these people that answer the questions???)
In addition, I found that it is a very bad idea not to have any CD or printed material of the course. I’ve had to take my own notes along the way and that slowed down my pace considerably (they disable your computer’s copy/paste functions while you are longed in – as if somebody would really copy and distribute for profit that course; nobody would buy it!).
So, yes, stay clear of careerwebschool!