It sounds like the package pricing information is listed clearly on her website and has been available this entire time. Are you really going to fault her for accepting a higher paying package, even if your wedding doesn't meet the suggested spend minimum? She's done the work for a full vision planning - however much you have spent elsewhere is irrelevant, and you can't argue about a lower bill AFTER the work has been done. It's like ordering a steak at a restaurant, eating the entire thing and then saying it wasn't cooked to your preference and you won't be paying for it.

Look - I'm sorry you're stressed. I know how bad it is in crunch time. Take a step back, wrangle your vendors and try to salvage the situation. Continuing the animosity isn't going to help your vendors get their job done. And this isn't how you'll want to look back on your wedding.