Joined Cases C-415/20, C-419/20 and C-427/20: Judgment of the Court (Second Chamber) of 28 April 2022 (requests for a preliminary ruling from the Finanzgericht Hamburg — Germany) — Gräfendorfer Geflügel- und Tiefkühlfeinkost Produktions GmbH (C-415/20), F. Reyher Nchfg. GmbH & Co. KG vertr. d. d. Komplementärin Verwaltungsgesellschaft F. Reyher Nchfg. mbH (C-419/20), Flexi Montagetechnik GmbH & Co. KG v Hauptzollamt Hamburg (C-415/20 and C-419/20), Hauptzollamt Kiel (C-427/20) (Reference for a preliminary ruling — Customs union — Rights to the repayment or to the payment of sums of money levied or refused by a Member State in breach of EU law — Anti-dumping duties, import duties, export refunds and financial penalties — Concept of ‘breach of EU law’ — Misinterpretation or misapplication of EU law — Finding of a breach of EU law by a Court of the European Union or by a national court — Right to the payment of interest — Period covered by that payment of interest)