Change of Genre needed

[GordOfThunder]

I run Radio Thunder UK (A Radionomy based Radio) and at he moment in the Shoutcast.com Genres it is listed under Hard Rock which is the wrong Genre, I play Power Metal & Metal so I would like it put under those Genres, or if only one allowed then Power Metal.
Yet on the Winamp Genre It is correct as listed as Metal!!
Radionomy Admin has no Power Metal tag in their Styles to input.
Thanks.