First wow I just thanked BG never thought I would do that, and thank you BG for coming out of third person to give that excelent explination of what to do. You do know your stuff no matter what anyone else says.

Now to the OP do exactly what BG said. I know in my experience selling and buying snakes 80% of the time it is the buyers fault 100% for most situations. For this I do think there might be some fault with the breeder but not all of it. The animals should have been taken to the vet the day it regurged it's food. Any snake I have no matter how long I have had it ,1 day in my care to my oldest being 13 years old, any of them regurge they go straight to the vet no questions asked.