Case C-34/18: Judgment of the Court (Third Chamber) of 19 September 2019 (request for a preliminary ruling from the Fővárosi Ítélőtábla — Hungary) — Ottília Lovasné Tóth v ERSTE Bank Hungary Zrt. (Reference for a preliminary ruling — Consumer protection — Directive 93/13/EEC — Unfair terms in consumer contracts — Article 3(1) and (3) — Annex to Directive 93/13/EEC — Point 1(m) and (q) — Loan agreement secured by a mortgage — Notarial instrument — Affixation of the enforcement clause by a notary — Reversal of the burden of proof — Article 5(1) — Plain and intelligible drafting)