Judgment of the Court (Second Chamber) of 11 September 2019.#Caseificio Sociale San Rocco Soc. coop. arl and Others v Agenzia per le Erogazioni in Agricoltura (AGEA) and Regione Veneto.#Request for a preliminary ruling from the Consiglio di Stato.#Reference for a preliminary ruling — Milk and milk products sector — Quotas — Additional levy — Regulation (EEC) No 3950/92 — Article 2 — Collection of the levy by the purchaser — Deliveries exceeding the available reference quantity of the producer — Amount of the price of milk — Mandatory application of a deduction — Reimbursement of the amount of overpaid levy — Regulation (EC) No 1392/2001 — Article 9 — Purchaser — Non‑compliance with obligation to implement the additional levy — Producers — Non-compliance with obligation to make monthly payments — Protection of legitimate expectations.#Case C-46/18.