The hidden charges (i.e. €10 for bed linen & €5 for towels per person; 3 of us => €45 in total) were not made clear *before* I made the booking. I only learned about these when I turned up at the property! If I had known about these charges, I wouldn't have made the booking as there were other properties which provided bed linen & towels for free. To be fair to the hosts, after a lot of haggling, they did reduce the amount by ~50% but the fact still remains that it should have been made clear beforehand.