I have to disagree with some of you here. He, as a box builder should know how to properly put together an enclosure without it falling apart. You spent your hard earned money on this enclosure to have it fall apart? That's messed up. Regardless of whether or not he used screws or not, an enclosure should not EVER come apart... and you having to squeeze the box in the trunk or whatever will have no effect on the glue joint coming lose...
You can drop a properly made enclosure from the top of a one story house and it should still be perfectly intact. Bottom line, you should get your money back, or get another one made and this isn't the first problem i'v heard about his enclosure. This is why I offer lifetime warranty on all of my enclosures, but, over the 100's i'v built for customers, ZERO of them have ever come apart. His craftsmanship just isnt on par the enclosure back wall just comes off. That's just my opinion.
Dustin
DL Designz