All these post delivery systems are highly automated these days. If there's a wrong bar code, or a missing label, or the label exchanged with a label on another package (which can happen when a label isn't glued well on the package), then the system goes berserk, without knowing it. It will take some time before somebody wakes up, and then the package has to be checked in by hand into checking points. That's my guess... for what it's worth.
Bought a 93mm awl from Dutch_Tooler. He sent it out on first week of December ‘18. Just got it today...What a trip!!!