A number of women working with former Canterbury Earthquake Recovery Authority (Cera) boss Roger Sutton made informal approaches about sexual harassment before the complaint that led to his resignation.
A source close to the investigation has revealed the women had informal discussions about Sutton's behaviour.
However, the State Services Commission indicated last night the complaints were not passed on to it. It insisted only one complaint had been raised with it.
"No other complaints were made to SSC directly or transferred from Cera," a spokesman said.
Last week State Services Commissioner Iain Rennie said the SSC had received only one complaint about Sutton's conduct and "acted on it immediately". "No further complaints have been received.