"I have learned the hard way that these kind of messages need to be dealt with quickly. The pup and the trainer are not meshing. Too early for it to be the pup's abilities. I'd be giving that pup to the breeder ASAP. You don't want the pup to develop a bad attitude. That can hard to get over."
I was uncomfortable reading about your situation.....too close to home. Sent a very talented, happy pup that was through transition off for a few months "evaluation". At the end of one month I was concerned. At then end of two months it was too obvious. No need for details, but it was very clear she wasn't thriving......I made a quick decision and she came home with me that day. Every once in awhile when reading a thread like this I wonder "What if I had known better?"
I totally agree with Justice Dog.