Questione giuridica chiave
Whether the appeal could be entered despite the unpaid advance costs.
Decisione estratta
No entry could be made because the required advance payment was not made within the non-extendable deadline and no timely proof of payment was provided.
Motivazione estratta
The court had warned of non-entry under Art. 62(3) BGG. The appellant neither paid in cash nor by valid transfer mechanism nor submitted the required debit confirmation within the deadline.