I too have bought eggs from ebay. I think the seller MAY be new to selling eggs but by no means is she trying to scam you. I think some people are a little internet wary and get scared if something doesn't go by the book and want to leave negative feedback. She sounds like she is doing all she can in this situation. The only time I would leave neg feedback is if the seller was not willing to make the situation right. We here all have and love chickens, we know things happen... I say if she refunds you, I would leave neutral feedback, simply stating, "problem fulfilling order, full refund issued, seller willing to work to resolve". This way if it becomes a trend with her people can see it. I too would buy from this seller but I always make it VERY clear that I pay IMMEDIATELY and I want only the freshest eggs. If after monday she still doesn't have enough eggs I would ask for a complete refund, and then if she is one of few that have the breed I would ask if I could email her in spring to see if things have picked up just so you keep your options open to later get eggs from her if you cannot find them anywhere else. Like said above feedback is optional. "If you can't say something nice, don't say anything atall" UNLESS they REALLY rip you off(and aren't willing to work to fix)...... then be honest, state the facts and let everyone know how much they SUCK!!
Just my rambling opinion...
Heather

Just my rambling opinion...
Heather