Colectin fee
The Colectin fee is charged to the buyer on top of the seller's price and shipping. It is never part of the seller's own amount: the item price and, when the seller ships it themselves, the shipping cost are entirely the seller's money.
How it's calculated
8.5% of the item price plus a flat €2 per purchase unit (one item, or one lot bought together). Shipping is not part of the base.
VAT
VAT is added to the fee according to the buyer's own country and account type: a consumer sees one all-in figure with VAT included; a business buyer sees the net fee with VAT stated separately, or reverse-charged where the regime calls for it.
What it covers
The item not arriving, or arriving significantly different from its description, for example turning out not to be authentic: the standard buyer guarantees on every purchase.