I agree Pete, this is very unusual. In the 5+years I've been an Axiom owner, there have been maybe 1 or 2 occasions where I had to wait maybe an extra day to hear back. A lot of times the technical support person may have to consult with someone the next day. But they have always gotten back to me.
They man the phones until 11pm, and 90% of the time answer the phone, I've never received a voice mail.
We are just forum members so we can't help. However, occasionally one of the Axiom folks monitor the forums, so they may see this thread.
Your best bet is to pick up the phone right now and call them. If you've talked to someone a few times, you should have a name. I would call and request an update.