I don't know the reason, but I've noticed any time I send an Email to DAZ using the "reply to sender" option, I've never gotten a reply, but if I send it using the "contact support" link on their web pages I always do, sooner or later. I've kind of assumed they send their replies from an account that has no in-box, or they just don't check it? I first noticed this about 8 months ago.