I had to drop acc or eco and i wasnt willing to do that. i wouldnt change my decision anyway. i loved economics even though i got 33. not to sound cocky but my score doesnt do justice to my understanding of economics. u can ask anyone on here, not that i have to answer to you or anything.
Same for me in Business Law at Uni. I don't feel that the mark I got in it compared to the amount that I actually knew. But, I guess, a part of that is the Business / Taxation Law dept. doesn't like giving out marks.
But, I'd have to step and rationalise a little in that, generally, they simply won't consider you if you don't meet the prerequisites (I've seen some of these cases before, although in the case of missing prerequisites - I knew a person who did *really* well with a score in the high 90s, but could not enter Medical Radiations due to lack of a Physics unit). However, I wish you the best of luck in pursuing the contact with the faculty.
I also think Eriny's suggestion is a good one as well - take a bridging course in Maths to meet this requirement through Open Universities or even redo Methods via
Distance Education Centre, Victoria, TAFE or the
Centre for Adult Education. A plus of this suggestion is that you can do this while taking a 'gap' year of sorts and working for a year.