I now have some information for you all which should clear up the situation.
Volumes 32 through 36 have been printed and are at the shipping facility.
However, they have not been shipped to you yet due to a staffing change at the printer/distribution center. Instructions were lost in the shuffle and our new agent at the distribution center and I were apparently talking about two different things.
I was inquiring on behalf of several subscribers regarding their tracking information for this latest shipment (for those travelling: as they wanted to be sure their box wouldn't sit outside for too long, and for those concerned that the promised books hadn't reached them yet). As a result a very small portion of the subscribers' books have been shipped already. Most of them haven't.
It turns out none of your books have been lost in the mail - in fact most of them haven't made it to the mail yet. Myself and Andre, our sales representative from the printer, are very apologetic. This seemed to be a pure miscommunication.
The resultant is that they have pick-ups scheduled for today (Dec 23) and tomorrow (Dec 24), but, due to the heavy volume of shipping this time of year, the books will not arrive by Christmas.
Once again sorry for the anxiety this may have caused some of you. The books are printed and should be on your way soon (for real this time).
Your slightly less confused and vaguely comforted Project Manager