Questione giuridica chiave
Whether the appeal met the reasoning requirements of Art. 42 BGG
Decisione estratta
The filing did not satisfy the mandatory content and reasoning requirements because it failed to show, in concise form, how the challenged decision violated the law.
Motivazione estratta
Art. 42(1) and (2) BGG require requests and a reasoned explanation with evidence; the submission of 3 May 2007 was insufficient, and the later submission could not cure the defect after expiry of the appeal deadline.