You can delete a Space. This will permanently delete all content and data stored within that Space.
You can only delete a 'free' Space. If you no longer have use for your paid Spaces, contact Elements support to have the Space downgraded first.
Prerequisites
The Space must be on FREE plan.
You must be a Space Administrator on that Space
You CANNOT delete your personal free space i.e. [your name's] workspace.
Delete a Space
Make sure you are in the main Elements application. It is the one with the menu on the left hand side that allows you to navigate to different features. You will also notice the name of your Space at the top.
Click on the dropdown next to your current space. Then select 'Manage spaces'
From the Space list, select the Space you wish to delete, and from the right panel click on the "more" ("the three dots") menu. Click on "Delete space" option.
Note: If you see "Manage space" in place of options to"Manage, Leave, Delete, or Request a trial" - it is because you are trying to delete your personal free workspace - and you cannot do that.