I agree with the others....ask for a refund (partial or full depending on whether supplies were part of the "class"). What a horrible experience for you, especially since it was your first class. :(
I agree that you can learn so much from this site and everyone is more than willing to help.
In the future, if you feel the need for teaching from a human and want to try another class, go to a small local quilt shop that is independently owned. I have not gone to a class due to lack of time and schedules not matching my free time but when I buy material the women have always been wonderful and very friendly.
Best of luck to you but do try to get a refund for the principle if nothing else. That is just WRONG.