Gary, did you try the new web email form?
http://www.mtu.com/support/customer-...m#WebEmailForm
From what I have seen lately some of the "tickets" are falling through the cracks, as in MTU isn't seeing them for some reason. Admin created the web email so it would come from a "trusted" email and not have the spam filter block it.
Be sure you include the email address you ordered the program under if it isn't the same as the one you are using now.