There doesn't appear to be a problem, as this item can quite legitimately be listed in four different categories. Indeed, eBay even suggested those four categories and while one of them doesn't really suit, the other three are very close. Trouble is, it's a fairly unique item which I've not seen listed on eBay before so I'm not at all sure in which category it would attract the most interest. Never mind, if I end up being charged $3 then so be it. I'll just be glad to see the back of the thing. 🙂