I'm sure that they have an English speaking staff somewhere, but I doubt that you'd be able to hook up with him/her right off the bat with a telephone call. I've emailed in English before with no reply, so I can't say much about what your chances would be about getting through with emails. I would be glad to save you the long distance $$ and could give them a call on your behalf as I speak Japanese. Feel free to contact me via pm.
dave