Judgment of the Court (Sixth Chamber) of 3 February 2021.#Stichting Waternet v MG.#Reference for a preliminary ruling – Directive 97/7/EC – Article 9 – Directive 2011/83/EU – Article 27 – Directive 2005/29/EC – Article 5(5) – Annex I, point 29 – Unfair commercial practices – Concept of ‘inertia selling’ – Supply of drinking water.#Case C-922/19.