I hadn't even thought to look at the contract from the breeder, though we have been in touch to let them know what's happened. I wouldn't be looking to seek any money or another pup, I'm grateful we had her for as long as we did, I'm certain the breeders would not have sold her had they know anything was wrong.
I realise that might sound a little harsh but that's not the intent and I understand you weren't suggesting it. I have had a fair few comments irl suggesting similar so it's a little sensitive.
We maintain a good relationship and try to meet the siblings up on a regular basis.
Behaviour wise her and her sister were complete opposites really, but they loved to wrestle and scheme to dig up the garden. Size wise she was always smaller, not massively but she was the runt of the litter so from birth there was an obvious difference, the last time we had them weighed there was 3kg difference but the vet was happy with her, she always gained on the same scale as her sister but her sister was bigger to start iyswim.
The deterioration was extremely rapid, approx 36 hours after the vomiting she was pts, 6 hours before that she had eaten a small amount and was pottering around as normal. We took her in after she showed signs of not being able to support herself and fell down when she tried.
Hopefully the pics attached upload.