I reckon you're better off going though CSA and then AAT. If you can establish she is lying about her income CSA can determine her income is higher than she is claiming via her tax returns.
But - it will always come back to the same old problem - if she can hide cash she will and she can accumulate a debt with CSA and you will never see the $$$
CSA can not do anything until this BFA is discharged and then they can start to act. She lives a flamboyant lifestyle and travels overseas 3 times a year posting it up on Instagram like a wannabe start. Let’s see what happens when there’s a departure prohibition order
The reason I asked about examples of child support agreements is the application states what final and interim orders I’m seeking. Obviously to discharge the BFA but might aswell include any others that might be relevant eg: half of educational expenses