Kernrechtsfrage
Whether the refund decision of 3 March 2006 was challenged in time and had become final.
Extrahierter Entscheid
The court held that the April 2006 filing was clearly a waiver request, not an appeal against the refund order, so the refund decision had become final.
Extrahierte Begründung
The wording and content of the filing addressed good faith and hardship, not the legality of the refund assessment; the authorities were entitled to treat it as a waiver application.