Case C-269/19: Judgment of the Court (First Chamber) of 25 November 2020 (request for a preliminary ruling from the Curtea de Apel Cluj — Romania) — Banca B. SA v A.A.A. (Reference for a preliminary ruling — Consumer protection — Unfair terms in consumer contracts — Directive 93/13/EEC — Consequences of a term being found to be unfair — Replacement of the unfair term — Method for calculating the variable interest rate — Whether permissible — Referral of the parties to negotiations)