Questione giuridica chiave
Whether the departmental decision to treat the appeal as withdrawn and close the file was lawful
Decisione estratta
The withdrawal was unconditional and final; the department was not required to reopen the case.
Motivazione estratta
An unconditional withdrawal ends the appeal proceedings and makes the challenged decision final. No circumstances showed mistake, misleading conduct by the authority, or a ground requiring reversal of the withdrawal.