Judgment of the Court (Sixth Chamber) of 10 December 2020.#A. B. and B. B. v Personal Exchange International Limited.#Request for a preliminary ruling from the Vrhovno sodišče Republike Slovenije.#Reference for a preliminary ruling – Judicial cooperation in civil matters – Regulation (EC) No 44/2001 – Article 15(1) – Jurisdiction over consumer contracts – Concept of ‘consumer’ – Poker-playing contract concluded online between a natural person and an organiser of games of chance – Natural person earning a living from online poker games – Knowledge of that person – Regularity of the activity.#Case C-774/19.