You may be paid a commission but based on what I have read, they provide you the room, the equipment and also set your hours.
They have control and it is more and employee / employer relationship than contractor.
In relation to the leave, based on what I have read you would have to tell them you need the leave because there is a roster and they have to fill your position.
They would be liable to pay your superannuation and also cover you for negligence.
This contract is a sham contract and if it were to go to court the court would not find a relationship where you are a contractor. The principal controls your working ours who you see and supplies you with the tools of trade. You are not a contractor.
You donot have control of who you see and for how long and when.
So having said that they have a right to approve your leave and you have to check and see if you are paid correctly.
This contract would not hold up as a contractor relationship in court.
I hope this makes sense and is of assistance. If there is nothing further
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