Opinion of Advocate General Emiliou delivered on 2 February 2023.#Verband Sozialer Wettbewerb eV v famila-Handelsmarkt Kiel GmbH & Co. KG.#Request for a preliminary ruling from the Bundesgerichtshof.#Reference for a preliminary ruling – Consumer protection – Indication of the prices of products – Directive 98/6/EC – Article 2(a) – Concept of ‘selling price’ – Products sold in returnable containers – National legislation requiring the amount of the deposit to be indicated separately from the selling price.#Case C-543/21.