(1) A gas market instrument may provide for the charging of a fee for anything done by or in relation to the Commonwealth, the Commission or any other person or body in relation to a gas market instrument, including in the exercise of a power or the performance of a function conferred by a gas market instrument.
(2) A gas market instrument that provides for the charging of a fee may deal with any of the following matters:
(a) the amount of the fee, including a method for working out the amount of the fee;
(b) who is liable to pay the fee;
(c) the consequences of not paying the fee;
(d) when the fee becomes due and payable;
(e) waiving a fee;
(f) refunding a fee.