Ha! Try a “practice approach” into e.g. Goulburn or Orange.
Save your energy: This has nothing to do with the Dept of Infrastructure.
It’s an argument between you and the operators of the aerodrome/s. They say, in effect, that your practice approach is a use of their aerodrome, because your practice approach results in a benefit to you and also affects other users who may have to adjust their approach or departure to fit around you.