Nancy Keeney Cavalier King Charles Dog Breeder review: Non refunded $600 deposit for puppy not delivered as agreed 1

We Put a deposit of $600 down for a $1200 Cavalier King Charles Puppy. The breeder contacted us the day before we were to pick up the dog and told us the dog was sick and needed a $1300 operation for a intestinal problem. The breeder wanted us to pay the vet bill and pay the additional $600 we agreed upon. We said no we would not pay a vet bill, please refund our money.
The breeder said no refund.