Question juridique clé
Whether the refusal to extend or restore the reply deadline was unlawful or arbitrary
Solution extraite
The refusal was upheld because the insured person did not show a non-fault-based impediment to filing within the ordinary or grace period; the medical certificate did not prove such impediment.
Motifs extraits
The cantonal court reasonably interpreted the post-deadline medical certificate, and the facts showed the appellant could still manage her affairs and could have acted personally or through a representative.