Mr Rankin told Mr Joyce on May 11 he believed the Education Act had been breached, as an educational institution had called itself a university when it was not recognised as such.
"This issue is of concern, as I said, to our Maori students who are being misled into enrolling at an institution which calls itself a university, but is not."
The chief executive of Te Whare Wananga o Awanuiarangi, Professor Graham Smith, said they had received legal advice and were comfortable with the term indigenous-university.
"The term was all in lower case and hyphened so it makes a whole new word."
Dr Smith said that interestingly, universities could call themselves whare wananga if they wanted to.
Awanuiarangi was doing the same thing with good reason. Dr Smith said they had relationships with universities and indigenous people overseas and it was easier to define yourself as an indigenous-university than a whare wananga. He said Awanuiarangi was a whare wananga.
"That's what we are. We don't want to be a university."
Awanuiarangi runs courses from certificate to doctorate level and also has campuses in Whakatane, Auckland, Rotorua and Whangarei. Mr Joyce did not respond to inquiries on the issue.