anyone else had this happen on eBay

[MeatPounder]

But.....

About 3 months ago I was waiting for a package from amazon, and I was tracking it.
USPS says they delivered it.
I never got it.
All types of complaints to the Post office at all levels. They say it was delivered.
Amazon sends me a new item free of charge which I get.
3 weeks later I come home from work and there is my original package soaking wet (on my enclosed porch) that the PO says they delivered a month before.

Case B
My mom is up in PA at my sisters, so I leave two boxes all labeled with priority mail postage for her neighbor to forward her mail with.
A week b4 she is coming home, we start looking for the second box.
PO says it delivered it a few days before.
Mom comes home, and 3 weeks later the box mysteriously appears at my sisters door (over a month after the PO SAID they delivered it)

NEVER EVER trust USPS delivery receipts