Although I have known by experience before, this time, I did a little test. Guess what, my package turned up in the PO BOX today! (It was shipped a whole month earlier).
What I did:
Last Thursday/Friday, I printed a little note saying something like "Please do not throw away my packages at PO BOX 545456, " with all my possible names.
And I taped it to the interior end of my P.O. Box where it is easily visible to the staffs.
Today the slip was removed and I got one of the 2 delayed packages.
Delighted, but a little troubled, because it is not guaranteeing me from future mishaps.