What in the %$#??!!!
You need to stop payment on that check and ask for a refund immediately. I can't believe that they accepted it at all. And girl you must have been delirious to give them a tip too
Do NOT go to the vet that they recommend. Get your own (and not the one that takes out the wrong teeth either!) specialty vet.
This is negligence of the highest order. I am sorry that you are going through this, but please, please stay away from the bootleg groomers that are usually found at Petco & Petsmart.
Poor little baby....I'm praying that all turns out well for him.