I am pink with embarrassment after I had contacted Amazon about the missing piece from my Jigsaw - because I have found it.
I said it wasn't anywhere in the house - it was in the car. I had to go to a very early hospital appt this morning and as I got into the front passenger seat I saw the piece on the floor between the seat and the door.
We can only think that it must have caught unnoticed on my clothing and just dropped off as I sat in the car.
To make me feel worse a brand new replacement jigsaw arrived this morning from Amazon free of charge. It is now relabelled and waiting go to the PO.
So I can't blame anyone but myself.
Here is a photo with the found piece. Now I can put it all back in the box.