> she put a sarcasic post up on her facebook page
Don't be tempted to use FB as a method of communication - whatever provocation you receive. As others have suggested I
would take it further. I'd also put the complaint in writing and send it to her, explaining why you won't use her again
Was she recommended to you? Had you visited her before you booked your dogs in? It's a salutary lesson to any reader that you
must do your research before using a new groomers although it isn't foolproof. I once had lovely reviews and I watched this groomer at work before booking my hairy wee mongrel in for a 'do'. She was really nice, and ever so gentle with her dogs. The only thing I forgot to ask was what sort of 'do' she'd be giving him, and presented with a mongrel of no determinate breed I think she changed her mind half way through... Oh dear - poor lad - he looked like an accident with a lawn mower for weeks!!
Good luck with the next steps