I don't know that this would rate negative feedback, unless you really needed the 6 yds, your project is on hold/going to be late, due to their mistake. You do have the option of refusing delivery and getting a full refund.
If you leave a neutral feedback, they can also leave one on you... it could end up hurting your ratings. I guess I would have to ask myself if this is really worth it? :D:D:D