Opinion of Advocate General Campos Sánchez-Bordona delivered on 9 September 2021.#Commerzbank AG v E.O.#Request for a preliminary ruling from the Bundesgerichtshof.#Reference for a preliminary ruling – Judicial cooperation in civil matters – Jurisdiction, recognition and enforcement of judgments – Civil and commercial matters – Lugano II Convention – Article 15(1)(c) – Jurisdiction over consumer contracts – Transfer of the consumer’s domicile to another State bound by the convention.#Case C-296/20.