Thoughts on various things that have been said:
BBB is garbage - there's really far less to accomplish by reporting to them than you'd hope.
That whole "get a lawyer" thing may not be a bad idea.
And I would think that even if they have an automated system processing it, that they could set said system to LOOK FOR overzealous disputes.
The BBB report takes 5 minutes to do and its free. It's a good way to get their attention and make them realize that your not gonna just go away quietly.
The lawyer thing is a bad idea unless you have a large group of people who will be doing a class action suit. The time and money spent on it is simply not feasable to an individual.