Case C-684/18: Judgment of the Court (Ninth Chamber) of 28 May 2020 (request for a preliminary ruling from the Curtea de Apel Bucureşti — Romania) — World Comm Trading Gfz SRL v Agenţia Naţională de Administrare Fiscală (ANAF), Direcţia Generală Regională a Finanţelor Publice Ploieşti (Reference for a preliminary ruling — Taxation — Value added tax (VAT) — Directive 2006/112/EC — Article 90 — Articles 184 to 186 — Principle of neutrality of VAT — Adjustment of the initial tax deduction — Discounts granted for intra-Community and internal supplies of good)