Your frustrations are understandable. I would be pissed off too. Hopefully this person will learn their lesson.
I'm glad I could bring this to your attention (although unintentionally).
I recently bid on and won 3 items from Hyo on her auction for HaloFest swag. The items include a Grunt plushie, MegaBloks warthog exclusive HaloFest set, and a Halo Legends Cortana poster. All items were in superb condition, especially the Grunt plush; she even sent me the reusable bag that originally came with the MegaBloks set! Shipping was very fast, and she packed everything so nicely, she even got a tube for the poster.
I would definitely do business with her again in the future.