Case C-495/19: Judgment of the Court (Sixth Chamber) of 4 June 2020 (request for a preliminary ruling from the Sąd Okręgowy w Poznaniu — Poland) — Kancelaria Medius SA z siedzibą w Krakowie v RN (Reference for a preliminary ruling — Consumer protection — Directive 93/13/EEC — Article 7(1) — Consumer credit — Review of whether the contractual terms are unfair — Failure of the consumer to appear at the hearing — Scope of the court’s powers and obligations)