I think emailing Animals Australia is a good idea. The RSPCA are clearly too stupid, and would only answer your question with the same sh!t that's on their website.
"RSPCA Qld opposes the practice of veal crates and urges consumers to ensure that the veal they purchase at the supermarket or butcher, or order at a restaurant, has been humanely produced. This is particularly important if the veal has been imported."
I don't really think the RSPCA are crap, its just that they are restricted in their movements. But I do agree, some things can be improved.
P.S Its just, many people look up to the RSPCA, because they aren't pushing for veganism like some other welfare organisations. But I think they should have a page on how great veganism really is.