The co-founder of Destiny Church is asking the High Court to force the Maori Women's Welfare League to restart its process to elect a president.
Hannah Tamaki, wife of the church's leader Brian Tamaki, also wants the court to order the league to delay its national conference.
Mrs Tamaki's High Court Statement of Claim says her nomination for the presidency was confirmed by the league in May this year but her name was left off ballot papers sent to members.
She says that omission breaches the league's constitution and is unlawful, as is its failure to send ballot papers to branches associated with Destiny Church.
Mrs Tamaki says while she was told in May that the league was investigating the branches, that inquiry has not been completed and cannot be used to suspend voting rights of those members.
The claim will be heard next week in the Wellington High Court.