Here is a useful Link for Bulk delete users in Webex Control HUB via API.

https://help.webex.com/en-us/hglkq6/Bulk-Delete-Users

Here is the direct Link to the project.

https://github.com/mklawiter/WebexControlHubScripts/blob/primary/BulkDeleteUsers.py

Its useful if you have 100 or 1000 of Users which needs to be deleted.