I purchased 2 puzzles (Morskie Oko Lake (10202) & Grizzly Bear, Alaska USA (10518)) from them on April 16. I have since completed one and have started the second. It is clear that the one I completed (the Bear) is missing pieces and it appears to be the same issue with the second one (missing edge pieces). After some back and forth regarding how to deal with the missing pieces and the Puzzle House standing by what they sell, an agreement was reached regarding the Bear. It is unclear whether I am going to take the time to complete the second puzzle (the lake), but at least this issue is over and done with.