Ah yes, maybe some normal things to us europeans are considered rude over there. I'm no expert but their social behaviour are quite advanced and facinating. I find them very polite and honest though (the little i have been in contact with them).
From 1989 thru 1991 I worked with many Japanese, at Hitachi Semiconductor US, formerly in Irving, TX.
They are very polite but they easily take offense, particularlly from their own.
The dealings I have had with sellers from digimart is not much different; they will take offense at the smallest things.
I believe the Japanese generally must suffer from some delusional paranoia ..................
Sorry to kidnap this thread, but I'm not sure I understand what you mean by that. Beware that you were dealing with business people, the 'salarymen', and not with regular people in more relaxed situations. Only old Japanese people get easily annoyed at anything in my view. What kind of questions did you ask your sellers?
Having said that, I think that both Digimart and Yahoo Auctions are bit like a no man's land or the wild west. The stuff that goes on those websites would make people fume over on Ebay. Beware.
The language barrier is another issue; can you imagine if I wanted to order a guitar from you people in the US and, without knowing anything about you, I wrote you an email in Spanish or French being that you speak neither of those languages. I think I'd get annoyed after this happened a few times. People on Yahoo Auctions will never sell guitars overseas and there are less than half a dozen shops on Digimart willing to do it; they just don't want to have to deal with it.
Despite that, I did buy a guitar from this man who said on Yahoo Auctions "I don't sell my commodities to the foreigner who cannot speak the Japanese" and the deal went fine. (I live in Japan by the way)