Didn't really read through it all, but... I did 2 offers and nothing shows up. I would have thought that it would show as completed but not credited. Can you explain that again if you already haven't? Sorry if I'm making you repeat yourself.
The rules for Best Buy is, the store you are price matching must have it in stock. The store must have a physical location within 20 miles of the store you are trying to have price matched.