Centrelink rage. Can anyone help me?

Hi guys, I'm sure some of you have had Centre link troubles at some point in time. Here is my situation.

• I study full time in Perth

• I have been working 3 hours a week

• I was getting $180 a fortnight from Centrelink (youth allowance) - this is now dropping to $75 because my brother is no longer getting his youth allowance (is no longer a student)

• I didn't earn/work the magical amount to be classed as independent (~30 hours a week over 2 years)

• I'm not old enough to be independent (magic age is 22)

• When I called Centrelink to find out if there were any exceptional circumstances, I got told it was "legislated" that for students this was the only criteria and not actually anything to do with being financially independent.

• My offer to have my parents sign papers indicating they weren't supporting me I was given the above answer again.

Is there anything at all I can possibly do to stop my youth allowance dropping/ be classed as independent ? Thanks in advance