Case T-47/19: Judgment of the General Court of 9 June 2021 — Dansk Erhverv v Commission (State aid — Sale of canned beverages in border shops in Germany to foreign residents — Exemption from the deposit on condition that the beverages purchased are consumed outside Germany — Complaint — Decision by the Commission not to raise objections — Action for annulment — Locus standi — Admissibility — Conditions for initiating a formal investigation procedure — Error of law — Serious difficulties — Concept of ‘State aid’ — State resources — Non-imposition of a fine)