Case C-273/11: Judgment of the Court (Second Chamber) of 6 September 2012 (reference for a preliminary ruling from the Baranya Megyei Bíróság — Hungary) — Mecsek-Gabona Kft v Nemzeti Adó- és Vámhivatal Dél-dunántúli Regionális Adó Főigazgatósága (VAT — Directive 2006/112/EC — Article 138(1) — Conditions of exemption for intra-Community transactions characterised by the obligation on the purchaser to ensure, as from the time of their loading, the transport of the goods of which it disposes as owner — Obligation on the vendor to prove that the goods have physically left the territory of the Member State of supply — Removal from the register, with retroactive effect, of the customer’s VAT identification number)