
I had similar experiences. Atilla was my only contact at the time (a few years ago), and emails seemed to go missing or be ignored. I did get what I ordered, after some customs form confusion.
Within the past month, I used the contrebombarde site's Contact page to send an email (run by midiworks), and it was returned as rejected, so their email problems aren't fixed.
While I haven't used them yet, it looks like Arnold organs may be selling a lot of the same gear. But you might not be able to mix keyboard brackets and key cheeks, or MIDI boards, from the two companies -- I'd verify that if you already bought some stuff from midiworks and are adding to your console.