Kernrechtsfrage
Whether the claim for insolvency compensation was filed in time and in the required form
Extrahierter Entscheid
The claim was forfeited because essential documents, including the application form, were not submitted within the statutory time limit despite a clear warning.
Extrahierte Begründung
Art. 53 AVIG imposes a forfeiture deadline; under Art. 77 AVIV the fund may require completion of missing essential documents and must warn of the consequences. The fund's notice was clear and unambiguous, so late filing caused the claim to lapse.