[Konotashi]

I would take my money and RUN somewhere else.

In my opinion, there's really no reason your trainer should try and be making your dog listen to her. A trainer's job is to teach the owner how to train their dog. The only reason she should take your dog and bark commands at your dog at all is to demonstrate to you how to handle/work your dog.
You want your dog to be loyal to YOU.
Ozzy listens to me, no questions asked. If you're not me, you can pretty much forget about him doing much of anything you ask of him - and I'm PERFECTLY okay with that.