Case T-360/21: Judgment of the General Court of 29 May 2024 – Portigon v SRB (Economic and monetary union – Banking union – Single Resolution Mechanism for credit institutions and certain investment firms (SRM) – Single Resolution Fund (SRF) – Decision of the SRB on the calculation of the 2021 ex ante contributions – Plea of illegality – Legal basis of Regulation No 806/2014 – Article 114 TFEU – Equal treatment – Commission’s discretion – SRB’s discretion – Obligation to state reasons)