I was a bit confused too if it was the vet or not that did the mix up.

If the vets office made the mistake you should not be charged for the surgery that was not authorized or any rechecks/meds resulting from it.

If it was the person who took the kitty to the vet then maybe you might consider next time your pets need surgery to take them yourself so there's no confusion.

Either way I'm glad Moose is back home and doing well.