The very situation happened with me recently. Funnily enough I ordered something that piqued my interest after seeing a deal for the product on this very site.
Got the notification that the item was out for delivery…. then the notification that it had been delivered. I was very excited, open my front door and there's NO ITEM!
Panic set in, maybe the driver kept it for himself? Do further investigating and check the tracking……………………. the photo proof of delivery was definitely NOT my front door.
Did a bit of investigating and yes the photo matches the residence of one of my neighbours and the package was no longer there. Knocked on the door and no answer.
Would you just consider the item lost or get police intervention?
And yet somehow the naïveté grows stronger.