What an unscrupulous vet

I would definitely report them to the proper authorities once things calm down and you've got YOUR babies feeding well and safe. I'm so sorry that they tried to do that to you
Will the new vet show you exactly how to tube feed? It's very precise but I know with some skilled instruction, you'll do just fine. In the meantime, keep them warm and keep trying to get them to latch on to Momma to stimulate her milk production and the hormones for that "maternal feeling". I bet she'll catch on when her incision isn't so darned fresh and sore.
Best of luck to you and the little family. I'll be thinking of you all and praying that everyone does well. I'm sorry for the loss of the one baby, that's too bad

Thank goodness your breeder recognized that there was a problem and she got to the vet in time!!!
BIG hugs to you and all your babies