With those sort of earnings perhaps you should consider pursuing a career in tax consultancy. Again, as in above, did you not ask what he was going to charge?
The largely common thread here is the surprise at the level of charge. In most instances the client has not asked what the charge was going to be. If I am buying a TV, I ask the price. If I am getting a plumber to repair my boiler, I ask the rough price ( I know there will be +/- in some jobs so fair enough). However many people seem to rarely ask professionals ( not just accountants) what they are going to be billed. If you do not then how can you then be shocked or amazed by the price. Different accountants will have different fee scales/charges. They will vary for a multitude of reasons. There are no set charges or set hourly rates. One needs to ask.
( I am an accountant & auditor in practice )