If you miss the timely re-enrolment dates, you can re-enrol during the late re-enrolment period:
Check miscellaneous fees for the late fee. This is due with your semester one fees the following academic year.
If your fail to re-enrol, you are no longer considered a student by the University. You have given up your place in the course. You will need to approach your managing faculty to see if you can regain your place. You can submit a late re-enrolment application (pdf 41kb) to your faculty office.
If your faculty agrees to re-admit you to your course, you will be charged the late enrolment fee.