Questione giuridica chiave
Whether the appeal against non-renewal of the residence permit was admissible and whether the decision had to be annulled for a wrong letterhead/authority label.
Decisione estratta
The appeal was admissible, but the formal objection failed because the decision was validly issued by the competent department despite the imperfect letterhead.
Motivazione estratta
The dispositive part and signature showed that the Department of the Interior acted; the migration office acted on its behalf. The defective heading was not a ground of invalidity.