First of all, I think you should go back and get your money back. She discussed one thing with you, then went totally different than what you agreed on. I just had this happen with getting my hair cut, and now I'm stuck with a style that I hate and a cut that's way too short... both things that I specified and even showed pictures of when I went in. The style she cut is NOTHING like the pics and my hair is too short for a ponytail, which was my first specification.. it must fit into a ponytail.
Then I'd follow ng's advice. There are a lot of ways to change the color temporarily, so you could kind of look at this situation as a way to play with different colors on your hair, because it's going to wash out anyway.
