Yes I know the nonrefundable part but I would still recommend being careful on who you mail them to. I made a post about this yesterday suggesting the nonrefundable popup box be implemented for the warband bank and it sounded like someone was saying it binds the items when mailed. Or at the very least, they said you could not put them in the warband bank anymore. So it might not say bound, but it’s messing with where you can put them.