Although I've not had 100 per cent success with yahoo (they still have a spelling mistake in my listing),
I have found that there are some real people behind the mask.
Try calling by telephone and asking very politely to amend your listing.
I hear that they're often offered crates of champagne and that sort of stuff
- but I'm not recommending that ;-)

It's helped a couple of times!

best of luck

Anthony Appleby
http://www.wldcup.com