Just posting an update for future reference if anyone comes on this thread:
I contacted the Down Under Centre and although they did offer this course in the past they no longer do it anymore unfortunately.
I recieved a reply from Vetassess who were very helpful, I will attach it below.....
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Thank you for your email. Please note that different providers design courses comprising different topics and are of different durations.
These are the topics required to be covered so that a plumber can be awarded the unit of competency,
Candidates for plumbing assessments must also provide a current level 2 First Aid Certificate. The first aid course you complete must include:
CPR
injuries from head to toe
wounds and bleeding
burns, poisons, bites and stings
medical emergencies: o chest pain, asthma, anaphylaxis, choking, shock o stroke, seizures, fainting, diabetes
infection control.
Even the course does not cover Bites and stings, it will be accepable as long as the course covers the rest of the topics.
You are welcome to send us the course contents to clarify before you start the First Aid training course.