Delivered but not delivered (expensive item)

Hi guys, now I know this has been asked before and I know its common for them to be marked as delivered early for target purposes then arriving later on. But has this ever happened for an expensive item that would usually require a photo and password for? I probably get about 40 parcels a year off amazon and recently bought a gift that was £500+ and £300 both gave me pass codes and photos.

Now I opened a request with amazon as this item was worth more than both and was randomly tagged as delivered a day before expected delivery usually id ignore it and wait for it, but as it was expensive and didnt have a code I was worried. I contacted chat who reordered the same product for me, now the old one is listed as returned reordered and new one is showing on my orders. I have seen that some people might get these packages later on and amazon dont spot it due to being scanned early.

Do I need to worry about two products showing up and getting into some kind of trouble or if the original product shows up could I even accept the delivery with no pass code and cancel the other? How does this work and has anyone had spmething like this for an expensive item?

Btw live chat were amazing and understanding