You must of been what they call a "360 Client" where you let a student practice on your hair before they go on the floor to service paying coustomers.
I go to Empire Beauty, and although it may be diffrent from school to school, I find it hard to believe this happend. A girl I know who was just a student in 360 messed up on two peoples hair, and the teachers fixed it, and it was all free of charge. They will try and give you what you want, but if they aren't able to, the will put the color back to what it was before. As far as perms and what not, it is kinda hard to fix them. What's done is done, but from the sounds of it you didn't have a perm or relaxer.
Another thing that could of happend is if you had box color in your hair, they are only allowed to match that color or go darker. So if you lied about having box color in your hair, and the new color came out spotty that is why. Every Empire School uses the same line, and that line isn't compatable with box dye, and will mess up the color, and can often times make it spotty or splotchy. If that is the case, that is why they wouldn't give you what you wanted, just fixed the mess, and told you if you wanted something different that you would have to come back and be a paying coustomer.
If none of what I said happend, and you still feel like you were treated unfairly, I'd suggest contacting the main office and placing a complaint, from what I hear they take things very seriously.