Even though it was indicated "Left on Porch" on my delivery confirmation online on 2/4, they arrived yesterday - shipped 2 day shipping with a ship date of 2/2.
No wonder Amazon's sole response was something to the effect "they would investigate".
So, 2 sets I no longer thought I was going to get, and I won a set of Gamescience Dice last night at Games That Can Not Be Named. Dice Dice Baby! (or something to that effect).