Actually I would complain to Ebay,  instead  of 12.1% you should have paid 13.4% plus 30 cents,  you got a bargain.

 

Fee type/categoryFinal value fee (incl. GST)
Fixed fee – all categories
Applies to all transactions, in addition to fees below
$0.30 per order
Variable fee – most categories
Calculated per item, based on the total amount of the sale (including postage and handling)
13.4% of the sale amount up to $4,000

plus

2.5% of the sale amount over $4,000
Variable fee - Non-fungible tokens (NFTs) category5.5% of the total sale amount
Fixed fee – Services category$44.00