AITA? Was sold an egg bound animal

Curious about others thoughts on the situation I'm currently faced with. I purchased a proven het pied female ball python the end of October. The seller had good reviews and seemed like an upstanding guy. Anyways, snake comes in. Get her settled in and things are going as planned. She ate once but refused the following week. That second week I go in and she's sitting on an egg. It's obviously bad, hard as a rock and nasty looking with a bit of blood on it. I check her over and there's another one still in there. I leave her for the day so she can lay the other one. Nothing. I try gently manipulating it but she's clearly bound. The vet had come to the conclusion that it's Most likely a twisted oviduct. The guy says she wasn't bred this year and showed no signs of being gravid or anything. The vet is recommending either surgery or euthanasia after he tries a few things and nothing happens. The entire time I'm in contact with the breeder who reads, but doesn't respond to any of my messages until I tell him about the possibility of euthanasia at which point he says he has another animal he can send me along with a return shipping label and he wanted me to send her back this past week and he'll take care of it. I never heard anything further. I messaged him this past Tuesday evening to ask if I was still shipping her out this week. Nothing. He read my message within 30 minutes of receiving it but never responded. I've messaged him a couple more times this week basically telling him we need to resolve this asap. Again, read it but never responded.
At this point I'm going to schedule the surgery and get her all fixed up. But am I wrong to seek some sort of refund for the animal? Obviously she will never breed again and I'll find get a good pet home.