(23)This Directive should apply to any contract whereby the seller transfers or undertakes to transfer the ownership of goods to the consumer. Platform providers could be considered to be sellers under this Directive if they act for purposes relating to their own business and as the direct contractual partner of the consumer for the sale of goods. Member States should remain free to extend the application of this Directive to platform providers that do not fulfil the requirements for being considered a seller under this Directive.