Questione giuridica chiave
Is the request to apply the 5% treaty withholding rate admissible in this appeal?
Decisione estratta
No. The treaty-rate question was not part of the lower-court decision and therefore fell outside the appeal object.
Motivazione estratta
The Federal Court is bound by the scope of the contested decision; a party may not raise a new substantive claim on appeal that was expressly excluded below.