I have some good news on this front. Well, it is partially good news. I sent an email to the photographer that was supposed to take the pet portraits letting her know I was mad at the pet shop and the replacement photographer for not being forthright in telling us the photographer had changed. She emailed back offering a free sitting for us! That was really unexpected and generous on her side. We will definitely take advantage of that offer.
The bad news comes from trying to contact the photographer that took the photos. I left a message with her yesterday, but of course I have not heard anything back from her. I really don't expect to hear anything. Since she wasn't the most professional photography in her style, I don't have expectations that she will handle our dissatisfaction professionally. It's a pain in the butt.