Case C-68/12: Judgment of the Court (Tenth Chamber) of 7 February 2013 (request for a preliminary ruling from the Najvyšší súd Slovenskej republiky (Slovakia)) — v Protimonopolný úrad Slovenskej republiky v Slovenská sporiteľňa a.s. (Agreements, decisions and concerted practices — Agreement concluded between a number of banks — Competitor allegedly operating unlawfully on the market concerned — Effect — None)