理工 廣告設計 non jupas,,收生要求

now, i study as in the UK,(maths art and econ),,,
i want to apply advertisting design in poly u in next yr

-since i just passes 4 subjects in my hkcee.but i found that the offer is 5 hkcee pass,,so... that means i hvnt got a chance!???? or i can retake one of my hkcee subject and apply,,,???i would like to ask abt the offer,,

thank!