To unenroll or withdraw from an activity, click the Withdrawal button located at the top right corner of the page.
When you click this button, a pop-up will appear saying:
“Are you sure you want to withdraw from this activity? This action cannot be undone, and your progress in the activity will be permanently removed.”
If you then click Confirm, your withdrawal is final — all your progress in the activity will be permanently deleted and you will not be able to resume it later (see the explanatory image below).