Lack of parts 1

I had a first model as a gift. Was missing a piece of the puzzle 50 pieces. Well, fortunately Amazon allows an exchange, so a new box arrives. There the 50 pieces puzzle is complete (phew!) But there is no model of the piece 100 pieces this time!
It's still the basis of this kind of product, an incomplete puzzle is frustrating! I said that my daughter is very careful, and we sorted all the pieces in freezer bags.
Not yet tested the puzzle 150 and 200 but I fear the worst.

In short, carefully avoid that mark.