What a BS post.
If you took it to the P.O. and handed to a clerk they would have scanned it and handed you a receipt. It would not generate a receipt if it was not scanned. It’s kind of idiot proof.
So, you should change your story to the truth, or delete it. Because what you say happened, didn’t.
(You probably took it to the P.O. and dropped it in the wrong box outside. If you want to delay your package, that is how they are delayed.
Total BS my ass. Created the label online with click and ship. Took the package to the PO and dropped it in the Priority mailbox. Then it disappeared. The tracking function records the label creation but says it was never mailed. Get squared away, mate.