ApprenNet allows you to leave an Organization that you no longer wish to identify with. To do so, follow these steps:
Select your email in the top right corner and select the 2nd option Settings
In the left sidebar, select the sixth tab Organizations
Below the Organization that you wish to leave, select Leave Organization
Once you confirm that you would like to leave the Organization, you will no longer be able to access your Exercises and Groups within that Organization. If you wish to re-join, you will need to contact the Organization Administrator to add you to the Organization once again.