Kernrechtsfrage
Whether the late-amended appeal requests filed on 2017-09-19 could be considered
Extrahierter Entscheid
No. They introduced new requests after expiry of the appeal deadline and impermissibly changed the dispute object.
Extrahierte Begründung
A supplementary brief may not be used to submit new relief; the original, timely appeal was already formally sufficient, so only a further argumentation was allowed.