I rang their info line and was told that it is not designed to fit in the box while the pieces are in the puzzle- and that it is just coincidence that 3 out of the 4 letters would fit this way. also coincidence that the pictures on the website also show the letters all having the knob at the same height (and therefore able to fit into the box).

i'm not happy but just wondering if it is just my puzzle or many of their puzzles.