Although I sympathize with you. We've had some bad cuts before too. One time, Benny got shaved everywhere except his legs. He looked like a cowboy with those thick pants. Needless to say, we didn't take him back to that groomer.
Shaving the head and tail when told not to is a huge mistake, I really hope you didn't pay them, they don't deserve it. And not only did she not remember, but it's a messy looking groom too. She looks choppy, they needed to go over her again. Yeah, don't go back to them!
Though she still is cute, nothing could ruin those pretty eyes. And luckily, it's grow back soon.