Independent MP Dr Gaurav Sharma is continuing to level allegations against the Parliamentary Service, nearly a week since his expulsion from the Labour caucus.
In a new, 4700-word social media post, Sharma has aired his complaints about three former staff members.
He also claimed Parliamentary Service had been fabricating information about him.
He reiterated his desire for an independent investigation into his claims.
Parliamentary Service has been approached contacted for comment.
Sharma was expelled from the caucus last week, less than two weeks after he first made allegations of bullying, gaslighting and misuse of taxpayer money.
Sharma has claimed that since being elected in 2020, there have been issues not dealt with by the Parliamentary Service in his office and eventually, as more concerns were raised, the situation escalated to bullying by party whips - whose job includes managing conflict and discipline in the party ranks.
But Labour Party leader Jacinda Ardern has repeatedly said Sharma's claims are unsubstantiated.