I would have been irrate.. I would NOT have paid her either... I had a groomer come to my house and give my Laci her first cut, I threw her out with a bunch of swears and tears... but like you said it does grow back...
I decided on my own to shave my puppies hair because it did get matted...
It will grow and she still looks adorable.. I dont know if you use clothes but its alot easier...
I wouldnt recommend going back there , try to find a groomer who is more expericned with yorkies!! Bring a picture if you have too..
This site has alot of really cute hair cuts if you are not planing to keep her in full coat
http://www.yorkiesllc.com/yorkieinfo...hairstyle.html
PS she should have known she was a girl as part of grooming is a sanitary clean up...