You will receive a Supplemental Exam Form in the post along with your Academic Transcript, please complete this form and submit it along with the fee to your local exams office.
The form is also available to print at this link (Supplemental Exam Form 2017).
The fee for Supplemental Exams is EUR100 (this is a once off payment regardless of how many exams you are repeating), you can make this payment by Debit/Credit Card, Bank Draft, Postal Order or Cash Payment.
If following the supplemental examinations you have not completed the modules required to progress to the next year of your programme (and you have not been given permission to carry the module on your official transcripts of results), you will need to decide whether to repeat the outstanding modules Internally or Externally.
Information on internal/external repeats is available at the links below.