For those who aren't eligible to get this free, this is cheaper than what other pharmacies are asking (usually around $30). Cheaper than getting it done by many GPs, too.
Book online using the link (it goes to the Australian site but it is for New Zealand). There are plenty of spots available.
Appointments are from 10AM to 6.50pm, 7 days a week, and are available at all of Chemist Warehouse's branches (Albany, Botany. Manukau, Westgate & St Lukes).