Item stolen from my Amazon delivery

Yesterday I got a parcel delivered to work.  I eagerly opened the package expecting to find my new smartwatch but all that was in there was the screen protectors for it!  I checked my order, yep it was definitely supposed to be in that delivery.

I called Amazon who were very helpful and are sending a replacement.  After inspecting the box more closely, I found that the bottom of the box has clear tape over the black Amazon tape.  It had been opened from the bottom and then taped back over!  Bastard!  I wonder where this happened, was it at the warehouse, or the delivery driver..?