Kernrechtsfrage
Whether the late payment of the cost advance and late filing of the appeal supplements were excused by illness.
Extrahierter Entscheid
No excusable impediment was established; the late acts were attributable to the appellant.
Extrahierte Begründung
The Federal Court found itself bound by the lower court's findings absent obvious error. Illness excuses default only if it prevents the party from acting and from instructing a third party or seeking an extension. The appellant gave no concrete evidence of the nature or extent of his condition and waived a medical certificate; the new medication-based allegation was an inadmissible nova.