Judgment of the Court (Second Chamber) of 29 January 2026.#Bundeswettbewerbsbehörde v M. GmbH.#Request for a preliminary ruling from the Oberlandesgericht Wien.#Reference for a preliminary ruling – Agriculture – Unfair competition – Unfair trading practices – Directive (EU) 2019/633 – Prohibition – Article 3(1)(d) – Payment request not related to the sale of the agricultural and food products of the supplier – Point (e) of the first subparagraph of Article 6(1) – Power to impose fines – Classification as a ‘single infringement’ of a number of prohibited unfair trading practices giving rise to the imposition of a single fine – Principle ne bis in idem – National legislation providing for a cap on fines.#Case C-311/24.