Judgment of the Court (Third Chamber) of 3 October 2019.#Gyula Kiss and CIB Bank Zrt. v Emil Kiss and Gyuláné Kiss.#Request for a preliminary ruling from the Kúria.#Reference for a preliminary ruling – Consumer protection – Unfair terms in consumer contracts – Directive 93/13/EEC – Article 3(1) – Assessment of the unfair nature of contractual terms – Article 4(2) – Article 5 – Requirement that contractual terms be drafted in plain and intelligible language – Terms requiring the payment of costs for unspecified services.#Case C-621/17.