Case C-464/10: Judgment of the Court (Seventh Chamber) of 14 July 2011 (reference for a preliminary ruling from the Cour d’appel de Mons — Belgium) — État belge v Pierre Henfling, Raphaël Davin and Koenraad Tanghe, acting as administrators in the insolvency of Tiercé Franco-Belge SA (Taxation — Sixth VAT Directive — Article 6(4) — Exemption — Article 13(B)(f) — Gambling — Services provided by a commission agent ‘buraliste’ acting in his own name but on behalf of a principal operating a business of taking bets)