I`d say you all better cut them some slack.
I too had that and that experiance with them: once ignoreing me completely and then sending me 3 spare CDTV Boards for the price of one.
I recently had a talk on the phone with Mr. Does and it seems live isn`t easy for him and his family (I won`t go into detail as this is private)
While this still doesn`t justifies everything I can see how that makes the behaviour differ from time to time.
E-mail seems to be a dead end in general but if you phone them up you will allways get a positive and freindly answer. Well I can see that this is not possible from all the way from the US.