First off, there is NO excuse for this crap and I would demand a refund. Never ever pay up front for a "service" and only pay when satisfied!
Then, absolutely cut that *&^%$#%^& pony tail off!!! Then say, "Oh damn, I was mistaken. I thought you'd look cute but you don't...and never did!"
I can't believe the number of groomer horror stories. I'll never take Curly to a "pro". This is crazy and they think it's acceptable???
I know how pissed you are and I hate it for both of you.