The binding legal principles are: (1) Where an employment contract contains a clause giving the employer discretion to modify benefits for 'future pensioners' at its 'sole discretion', this creates an exception to any general entitlement to benefits, and the discretion may be unfettered if the language clearly indicates such intention. (2) The phrase 'subject to' in a contractual clause introduces a limitation or qualification to the general rule stated in that clause. (3) Even where an employer has contractual discretion to modify benefits, such exercise remains subject to scrutiny for unfairness under section 186(2) of the LRA relating to unfair labour practices concerning benefits. (4) An employee alleging unfair exercise of employer discretion bears the onus of proving on a balance of probabilities that the discretion was exercised unreasonably or unfairly. (5) The test for fairness in exercising discretion over benefits is objective and includes consideration of whether the employer acted arbitrarily, capriciously, or without commercial rationale. Where there is commercial rationale and proper consideration of legal implications, the exercise will generally be fair. (6) Compensation for unfair labour practice under section 194(3) of the LRA is a solatium for injury to dignity, not damages for patrimonial loss, and is therefore not appropriately calculated using actuarial evidence of financial loss.