Hi
@KezzaG I am very sorry to hear about the difficulties you are experiencing getting financial support. The link below is to BCNAs factsheet on practical and financial assistance that you might find helpful.
https://www.bcna.org.au/media/4520/bcna-fact-sheet-financial-and-practical-assistance-march-2017.pdf ;
The Department of Human Services has a financial advice service on 132 300 and as @Zoffiel suggests it may be worthwhile to ring and make appointment to work through any options available. The Cancer Council also can provide financial advice on 13 11 20.