From the SA Ambulance site:

ACE Cover: Most private health insurance policies cover you for the cost of emergency attendance* and/or transport by SA Ambulance Service. But what about non-emergency transport by ambulance?

While it’s difficult to predetermine each set of circumstances, many cases of illness or injury require additional patient transportation: for tests, ongoing treatment or transfer to another hospital. This ambulance transport is generally classified as non-emergency transport. Non-emergency transport fees start at $170..

* SA Ambulance Service classifies emergency cases as Emergency 1 and Emergency 2.
Ambulance Cover Extras (ACE) provides you with all the cover and peace of mind you need.

Family $33.75
Single $16.90

Because we have "Emergency Ambulance Cover" as part of our health fund, we only pay $33.75 a year for the whole family to be covered for anything! If it fits in the PHI criteria - we claim through that. If not, we claim through this. Cool, huh? Otherwise, like Beatrix said, it's $130 a year for full cover with SA Ambulance. Cheaper than one little ride