*make sure every mail item you get has the correct and FULL apartment # on it*
123 abc way a101 will get delivered, 123 abc way 101, or 123 abc way... good luck. Your "regular" carrier may not even be there that day, or the package arrives late (or carrier needs help) and there could be a large number of carriers that could be delivering your package... So many of our "mis delivered" packages are no apartment # that some carrier saw your last name on 8 boxes in your complex and "picked one" instead of returned as Insufficient as addressed like they should have.
"My carrier knows my apartment #" is a bad argument for not properly addressing your mail/packages. And a carrier that memorizes the names and never corrects the customer in the name of CS... is a bad carrier. A carrier went home sick yesterday (Gee his BB team was playing during work hours...hmmm...) I had to do his 500+ apartment complex... returned 7 packages cause i'm not going to sit there and go through every damn name to "guess" if this is the correct one...
Over the years i have found that if I be "nice" and figure out where the package goes, even with the little sticker that says you need to notify the sender of your correct and full address... 1% actually do.
If I return it..... almost immediately people fix the address. (after complaining)
This is mainly apartments, actual house delivery rarely has this problem... although people still do not know where they live or what their actual address is. they live at 123, address mail as 122 or 128 constantly.. Or another fun one.. a new city incorporates right next to City "XXXX" as "XXXX VALLEY"
Remember your regular carrier, is just 1... of a large pool of carriers that can deliver your package on any given day. Multiple reasons why your regular carrier didn't actually deliver your package, someone else did.
Express mail is a huge example, 99% of them are not delivered by your regular carrier. Late/delayed flight, dedicated Express carriers, etc.
/PetPeeveRant