Ordentic charges commission on placed orders. There are no setup fees or fixed monthly costs for selling on Ordentic.
Commission is calculated on line subtotals excluding shipping and excluding VAT. Shipping is not included in commission. Preferences, then commission & legal, has the most up-to-date rate:
The legal terms are here:
When a customer is refunded, commission is refunded in proportion as part of the payout reversal, and you receive the credit note by email.