You quote £ . If you are not in Republic of Ireland you might get more appropriate answers from a UK forum. I appreciate that accountancy in ROI and UK are broadly similar but there would be some differences and in fees. Also, is the compnay audit exempt or not as that would have a major bearing on fees and as other poster has said, what was to be included and what was the extra for. Your letter of engagement ( which you should have ) would dictate the normal terms of reference of the work, i.e. who is responsible for what and the fee structure.