Puppies on the Run review: Sick puppy

I was hoping not to have to make a review but after giving POTN a week to reply I have decided to share my experience. On Wednesday March 24th I picked up our second POTN boxer, I got to visit with her for a while while there since there was a gentleman before me also purchasing a puppy. While there two of the ladies mentioned that "Sunkist" sometimes sneezed and made grunting type noises but that she was healthy and was because she is a boxer. As a boxer owner, neither of those things concerned me as boxers are a short nosed breed who tend to sneeze and make noises and I hadn't heard her do anything of the sort while spending time with her, she had also been seen by their vet multiple times and by the breeders vet as well. Once in the car and down the road she was making gasping sounds and halfway through the drive was also bubbling from her nostrils. Next day when we fed her her breakfast she was choking on the pieces because she was struggling to breathe and eat! After going outside later and her doing almost nothing but still being extremely winded and once again foaming from her nose (in between these incidents she was still gasping/choking anytime she moved around) I brought her to our vet on the 26th who confirmed it was not normal. As someone with puppy/dog knowledge (including selling) I would have never sent a dog home making the sounds she was making, let alone say she was "perfectly healthy". I sent POTR an email also on the 26th explaining the situation but saying I was not interested in returning "Sunkist" (now named Emma) or in any money but that I was disappointed in the situation. After a week now they have not responded, I never had a problem with them responding when I was purchasing either of my puppies but now that it's an email with a problem with one of their puppies they don't respond? We had a great experience with our first back in January but this has pretty much ruined it and we will not be recommending them anymore.
Update: after posting the review on their FB page and another email, I STILL haven't received a reply.

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