I have a wonderful grooming place near where I live... whenever I get my boys back they are so happy and waggy and kiss the groomers, they look great, smell great and never really any problems (small case of razor burn around the butt area once) but I really like my groomers.  
HOWEVER... I sign papers that say that IF they DEEM it necessary they will shave the dog if there are mats.  The paper also states that they will attempt to detangle if I prefer but that will incur additional charges depending on the severity of the mats and if they cannot detangle they will shave.  Did you sign papers that stated that?  I'd be pretty mad if I did not sign something stating that and I got him back shaved when I specifically asked for no cut at all.  As frustrating as that is, the hair will grow back quickly and you know to never go there again.   
However... if they nicked or hurt your baby in any way.... I'd be writing letters too!!!!  That is the part i'd be FURIOUS about!!!   
Post pics... I'm sure your baby is still SUPER adorable!  
