I agree with the general forum. You did not quarantine....a quarantine is basically solo supervised care away from the general collection.
Back on the seller, I think you are flaming the seller without good cause as long as I understand the situation correctly. From what you said, it sounds like the seller is willing to pay your admission to the next show, and give you a similar snake for free. That seems like really good post-purchase service to me. Yeah, it sucks that your snake died, and that you will have to go out of your way again to the show (and gas), but overall, the seller seems to be handling it really well.
If you can afford it, get an autopsy done at your local herp vet.
My guess for her death is actually something you did during the "quarantine" process. Again, this is just a hunch, I am not trying to call you out on anything, just the way you said it makes me imagine you spraying the snake with PAM.
The issue with the quarantine as stated above isnt that it was or was not necessary, it is that the way the OP stated how the quarantine was done is all but a 10 minute ordeal, which is not a QT. If it wasnt a proper QT, then what was it...that is what I am asking.
