Kozak Judgment of the Court (Sixth Chamber) of 25 October 2012. # Maria Kozak v Dyrektor Izby Skarbowej w Lublinie. # Reference for a preliminary ruling: Naczelny Sąd Administracyjny - Poland. # VAT - Directive 2006/112/EC - Articles 306 to 310 - Special scheme for travel agents - Transport services carried out by travel agents acting in their own name - Concept of single service - Article 98 - Reduced VAT rate. # Case C-557/11. TITJUR