Cancelling

Free while a deal is still in negotiation; once it is paid, a refund runs on the payment provider's terms rather than the platform's.

Either side can cancel while a deal is still in negotiation — nothing has been committed.

Once a deal is paid, cancelling is no longer a one-click matter, because money has already changed hands and any refund runs on the payment provider's terms rather than the platform's. Where a refund is possible at all depends on the rail used: some settle outside the platform entirely and cannot be reversed from here.