Questione giuridica chiave
Whether denial of receipt of the collection notice is sufficient to defeat proof of valid service when the decision was sent by court delivery or registered mail.
Decisione estratta
No. A mere denial of having received the collection notice does not suffice to invalidate proof of proper service.
Motivazione estratta
Where a decision is served by court delivery or registered mail, the presumption of valid service is not rebutted by a bare assertion that the collection notice was not received.