One other FYI--I have been told that determining when one's ticket will be processed [in Dearborn, MI] is by the departure date of your trip. This becomes a bit more significant if waiting to upgrade with miles on a heavily traveled route with limited upgrade capacity. To speed what I can... I use USPS overnight since the delivery is to a P.O. Box, and delivery can be on a Sat for same cost.

This may or may not apply to your particular situation, but is traceable.