Judgment of the General Court (Fourth Chamber) of 23 March 2022.#ON v European Commission.#Civil service – Members of the contract staff – Remuneration – Expatriation allowance – Article 4(1)(a) of Annex VII to the Staff Regulations – Retroactive refusal – Recovery of undue payments – Article 85 of the Staff Regulations – Action for annulment and for damages.#Case T-730/20.