Two comments.
First, be very careful about leaving a neutral or negative. I did a neutral once and the seller retalliated by giving me an untrue and nasty negative.
Second, while I agree that something seems odd with this whole thing the bottom line is that you got your fabric and you didn't pay shipping. Something is definately starting to smell in e-bay land. Sellers are leaving by droves. I would give the individual the benefit of the doubt.