@ChrisMayLA6 last month I saw my delivery driver outside my neighbour's block then received notification of delivery. Went to my neighbour's house, nothing there. Opened a chat with the delivery company and within a couple of minutes the driver miraculously retrieved the parcel from my neighbour and handed it to me, saying he "dropped his phone in the mud".

I could be wrong, but I suspect they say it's delivered and keep it to sell on, especially if it appears to be valuable.