Photo: 123RF
Meetings have been held at the I Laumalie Mo Mo oni church in Māngere with claims they are promoting the unauthorised scheme.
Overstayers and those wanting residency are said to have been told if they join the church and pay around $500, a judge will sign off on their residency.
Immigration Advisers Authority spokesman Duncan Connor said they were encouraging anyone who feels they have, or know someone who has, been given unlicensed immigration advice to contact them or police.
Connor said anyone giving immigration advice must be licensed by the authority unless they have been given a special exemption.