Kernrechtsfrage
Whether the claimant was in good faith within Art. 25 ATSG despite non-disclosure of pension income and failure to check the EL calculation sheet.
Extrahierter Entscheid
The claimant could not invoke good faith because his representative's grossly negligent failure to report the pension income is attributable to him, and the claimant also failed to perform a summary check of the calculation sheet.
Extrahierte Begründung
Art. 25 ATSG excludes waiver where the recipient, assessed objectively but considering personal circumstances, did not exercise the minimum required care. The representative knew of the pension award and had a duty to notify the EL office; the omission was gross negligence. The claimant also had to inspect the calculation sheet for obvious errors.