Case C-243/08: Judgment of the Court (Fourth Chamber) of 4 June 2009 (Reference for a preliminary ruling from the Budaörsi Városi Bíróság (Hungary)) — Pannon GSM Zrt v Erzsébet Sustikné Győrfi (Directive 93/13/EEC — Unfair terms in consumer contracts — Legal effects of an unfair term — Power of and obligation on the national court to examine of its own motion the unfairness of a term conferring jurisdiction — Criteria for assessment)