well you had a lot more than just the 40 free listing insertions in the month, so you were charged for each one over the 40 free, then a couple of them had sub.titles about the warranty .... that costs extra

if they were listed in 2 categories that is also an extra charge

then you were charged 9;9% commission on the items that did sell

go to your my eBay.. Accounts Tab and check your complete invoice, every individual charge is listed on your invoice.