Case T-654/20: Judgment of the General Court of 16 October 2024 – Silex v Eismea (Arbitration clause – Technological research and development – Framework Programme for Research and Innovation Horizon 2020 (2014-2020) – Grant agreement – Action for annulment – Debit note – Letter rejecting declared costs as ineligible and ordering the recovery of a contribution paid to the guarantee fund – Acts not amenable to review – Acts forming part of a purely contractual framework from which they are inseparable – Inadmissibility – Reclassification of the action – Obligation to state reasons – Eligible costs – Proportionality)