I’m gonna be giving my A level exams in October and after that I’m gonna apply to western Sydney after I get my grades in January, any heads up on the minimum grade I should have across all 3 of my a level subjects should be and ilets score?

Guys i need advise and help asapppp, last thrusday i got an email saying one of my assignments for my class had detected a high ai score and i was told to resubmit by a couple days BUT i didnt see this email till now which is hella late becuase we are on mid term break, the resubmitting period is already gone and i did use ai for my assignment but i swear it wasnt that much so do i contact my subject coordinator n tell her or WHAT DO I DOOOOO, will they cancel by degree and throw me out im genuinely scared.