What does she think sellers are, department stores? If she wants service like that she should go buy from them! The nerve of these buyers these days who can't even spell! Ugh! Stand firm with this one, and let us know how it turns out!
I am sorry that your dealing with a nut! You can't return things because it's not what you expected after you wore it. Let her know that she can resell it on ebay if she is so unhappy with it. It's not problem that she has buyers remorse! Please Keep us posted.