Questione giuridica chiave
Whether the appeal could proceed despite non-payment of the court advance after the non-extendable deadline expired.
Decisione estratta
No. Since the appellant did not pay the advance costs within the set deadline, the Federal Court had to decline entry on the appeal in summary proceedings.
Motivazione estratta
Under Art. 62(3) BGG, failure to pay the required advance after expiry of a non-extendable grace period results in non-entry. The later request for installment payments could not be granted because it would effectively extend a deadline expressly declared non-extendable, which is impermissible.