OK, one more comment after reading your last transmission.
It appears that all they did was a "Cash Receipts & Disbursements" statement?
No Balance Sheet, etc.
One Page Statement, no footnotes, no explanations, etc.
$650. is indeed outrageous and I wouldn't pay it.
I'd suggest $250. period. And that's borderline outrageous too in the circumstances.
I presume that you may be upset enough to go elsewhere for your tax services, etc. in the future. So, by treating an existing client this way, they probably have lost a client.
So it's a lose, lose situation.
Something has probably broken down within the firm whereby they are billing based upon someone's time sheet without looking at the reasonableness of the charges in the circumstances.
Too bad, they aren't going to do too well if this is the way they treat their clients.
Sometimes firms do this when they really don't want small clients anymore. Perhaps this is the case, I have no idea of course.
It's too bad -- I hate to see this as it sometimes gives us all a bad name. Obviously, I'm only trying to help here, not expecting to profit by the time I've given you.