Hi Sal92,
Like you I employed two estate agents got rid of them after 4 months. Got a bill for E750 for advertising, I asked for an itemised bill for what the bill was for - in fairness they did advertise and I had to pay for this. I think you will too if they paid for advertising it comes out of your pocket, no sale no fee relates to their "professional" fee, any outlays incurred by them on your behalf will have to be paid by you. I would ask for an itemised bill to see exactly what you are paying for. Good luck with new estate agents!