Students being made to fail examinations on purpose

I have also been suspiciously been made to fail both examination assessments for one course (Equities & Fixed Income). It doesn't make sense how we can do well in the class assessments and get 80%'s but fail the exam horribly with a mark below 40%. Now we have been made to fail the supplementary exam (which we paid R1800 for) after being inconvenienced by being issued with a wrong examination question paper initially on top of everything. Their examination marking system is not fair and consistent. I'm actually shocked to find out that I'm not the first student to go through this. I want a remark of my examination script or be shown the examination marking memorandum! There's simply no way we can fail exams like this despite studying so hard - and our class assessment marks show that we study hard. Milpark is toying with our futures and *****ing our monies.