I'd be so disappointed to come across something like that.  You'd think any seller these days hocking stuff on eBay would have at least some idea of basic packing.  Take some pics of the poor packaging and hopefully you will get your money back and keep the TAM ...  Even better, then you could source a replacement CD door and sub case and all would be well again, hopefully.  I'm assuming the Bose sub will sound horrible as it's not a sealed unit anymore.