Key legal question
Whether the appeal had to be entered into despite non-payment of the court advance within the final deadline.
Extracted holding
The court would not enter into the appeal because the required advance was not paid within the non-extendable grace period.
Extracted reasoning
Under Art. 62 BGG, a court advance must be paid within the set period and, after an unused grace period, failure to pay leads to non-entry. The appellants did not pay by the deadline.