The former New Zealand boss of JPMorgan Chase - who allegedly lost a job opportunity when the corporate giant refused to confirm he was previously its local chief executive - will need to bring any claim against the bank in the District or High Court.
That follows a Court of Appeal decision yesterday which ruled, in essence, that the Employment Court was not the appropriate forum for the dispute.
Robert Lewis was the local head of JPMorgan Chase from 2008 to March 2010 and filed a complaint against the bank with the Employment Relations Authority (ERA) some six months after he left the firm.
Events the year before had led to Lewis raising a personal grievance where he alleged he had been unjustifiably disadvantaged in his employment.
In March 2010 - the day before he left JPMorgan Chase - Lewis and the bank reached a deal to solve this grievance and gave the terms under which he would leave his job.