Joined Cases C-13/18 and C-126/18: Judgment of the Court (Second Chamber) of 23 April 2020 (requests for a preliminary ruling from the Szegedi Közigazgatási és Munkaügyi Bíróság, Szekszárdi Közigazgatási és Munkaügyi Bíróság — Hungary) — Sole-Mizo Zrt. (C-13/18), Dalmandi Mezőgazdasági Zrt. (C-126/18) v Nemzeti Adó- és Vámhivatal Fellebbviteli Igazgatósága (Reference for a preliminary ruling — Taxation — Value added tax (VAT) — Directive 2006/112/EC — Right to deduct input tax — Refund of excess VAT — Late refund — Calculation of interest — Rules for granting interest due because of the unavailability of an excess of deductible VAT withheld in breach of EU law and interest due because of the tax administration’s delay in paying a sum due — Principles of effectiveness and equivalence)