Questão jurídica principal
Whether a no-effect sanction for unpaid cost security must be expressly warned again when the deadline is extended.
Decisão extraída
Yes. Each extension of the deadline must again state that failure to comply will lead to a no-effect decision.
Fundamentação extraída
By analogy to civil procedure, and because the sanction is severe and the legal situation would otherwise remain unclear, the warning must accompany every extension so the complainant clearly knows the consequences of non-compliance.