Judgment of the Court (Fifth Chamber) of 7 September 2023.#Nexive Commerce Srl and Others v Autorità per le Garanzie nelle Comunicazioni and Others.#Request for a preliminary ruling from the Consiglio di Stato.#Reference for a preliminary ruling – Postal services in the European Union – Directive 97/67/EC – Fourth indent of the second subparagraph of Article 9(2) and Article 9(3) – Article 22 – Undertakings in the postal sector – Contribution to the operational costs of the regulatory authority for the postal sector – Obligation – Financial burden borne exclusively by market participants, without distinction according to the type of services provided – Principles of proportionality and non-discrimination.#Case C-226/22.