Question juridique clé
Whether the late filing and supplemental submissions were admissible, including the request to restore the appeal deadline.
Solution extraite
The original appeal was timely; the deadline-restoration request was moot, and the later supplemental submissions were inadmissible because they were filed after the statutory appeal period.
Motifs extraits
A timely signed appeal was filed within the legal deadline after the challenged decision was produced. The later documents were not a response to the authorities' observations but an impermissible supplementation of the appeal.