If you can't find the right assessment in the list while you're submitting your EC claim, you can tick the 'My Assessment is not available' box, you'll need to let us know the module code and assessment description (e.g. AGRI 1048 Presentation) in the 'Please provide your assessment module identification number and description' field.
If your extenuating circumstances affect multiple assessments, make sure you add them individually using the 'Add Assessment' button on your EC claim form.