oh my goodness, that's horrible! So she wasn't let out of that cage at all? No wonder she's so traumatised! Is there an agency in your state that "manages" boarding facilities? Like some department that sets out guidelines for boarding businesses and carries out inspections? Maybe the RSPCA could help..because surely that would be considered animal abuse if all the cats there are being kept in tiny cages for the duration of their stay?

ETA: it's not your fault hun, you weren't to know they were like that. After all, we put our trust in them that they'll take of our animals almost as well as we do, that's what they are there for...to provide peace of mind for owners that their pets will be well looked after while they are away!