dpd1 - 8:55 pm on Oct 22, 2012 (gmt 0)
Legalities aside... What it really comes down to is; how much value do you place on your time and energy fighting somebody over it, trying to get it back. Obviously the price of the item is a major factor. But if it's not the end of the world, I'd just let it go. I'm not the kind of person that likes letting stuff go, but sometimes it's the logical thing to do.