OMG!!!!!!
What the *#^&??????
BIG difference between removing a tumor and spaying. Now the poor baby has to go through a 2nd surgery. I wonder how he would like to go through that? This is a totally preventable thing.
I work in a hospital and we have something called time out. You make sure you have the right patient, going for the right surgery etc........ I can't imagine a vet. surgeon doesn't do something similar.
It sounds like you paid for the spay. I sure hope they don't charge you for the tumor removal. After all the spay was not the surgery. They should have eaten the cost of that surgery.
I will keep your furbaby
and you in my prayers.
Please keep us posted.