Question juridique clé
Whether the insured person met the good-faith requirement for waiver of repayment of undue supplementary benefits.
Solution extraite
She did not act in good faith because she committed at least gross negligence by not correcting obvious errors in the benefit calculations and by failing to disclose her true financial situation.
Motifs extraits
Good faith is excluded not only by intent but also by gross negligence. After receiving decisions and calculation sheets showing zero assets and understated income, she had to realize that her declarations were incomplete and had a duty to inform the fund. Any administrative error did not release her from this duty.