Looking at your completed items, you sometimes list auction items as 3 day auctions.
This counts as a 'special duration' and every time you list an item as a 3 day auction, you will be charged 35p.
https://www.ebay.co.uk/help/selling/fees-credits-invoices/fees-private-sellers?id=4822&st=3&pos=1&qu...
"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)