Key legal question
Whether the appeal had to be declared inadmissible for failure to pay the advance on judicial costs within the extended deadline.
Extracted holding
Yes. Because no payment was made within the deadline set by the President, the appeal was inadmissible.
Extracted reasoning
Under Art. 62(3) LTF, failure to pay the advance on costs within the extended time limit results in inadmissibility. The President could decide in simplified procedure under Art. 108(1)(a) LTF.