If a buyer makes an offer of £75, they are not offering me £75.

Their offer is £75 including BPF.

As explained in Post 72, I would see the offer and would be aware of how much I would receive.  I believe I would receive £71.44.

As always with an offer, I could accept or decline.  I would know exactly how much I was getting and would not feel that I was paying a fee.

"There are two ways to be fooled. One is to believe what isn't true; the other is to refuse to believe what is true.”
Søren Kierkegaard, Danish philosopher (1813 - 1855)