Questione giuridica chiave
Whether the bankruptcy warning notification was null because it did not comply with Art. 64 SchKG
Decisione estratta
The defective notification was not null because the debtor became aware of its content and the defect was cured by actual knowledge and receipt.
Motivazione estratta
A vitiated service does not entail nullity when the addressee learned of the act; the appellant did not show arbitrariness in the cantonal court's application of this principle.