Case C-27/15: Judgment of the Court (Sixth Chamber) of 2 June 2016 (request for a preliminary ruling from the Consiglio di Giustizia amministrativa per la Regione siciliana — Italy) — Pippo Pizzo v CRGT Srl (Reference for a preliminary ruling — Public procurement — Directive 2004/18/EC — Participation in a call for tenders — Possibility of relying on the capacities of other undertakings in order to satisfy the necessary criteria — Failure to pay a fee not expressly provided for — Exclusion from the contract without the possibility of rectifying that omission)