UCTOHS and SACAI marking disparity

My son wrote matric with SACAI after we registered with UCT Online High School. His result differs too much from his term marks (some 30% decline) and his results for finals reduced drastically. This disparity suggests inconsistencies in marking between UCTOHS and SACAI. Remarking and rechecking fees are unaffordable, but we believe a review is necessary. I therefore request a free remarking of all his scripts to ensure fairness.

Your immediate attention to this matter is appreciated as he was not accepted at university