Perhaps you can try this generic tool for cPanel hosting accounts: A Let's Encrypt PHP client for complete automation (issue/renew and install) of Free SSL Certificates in cPanel Shared Hosting .
In the Australian context, it’s a good idea to stay away from any hosting brand operated by the Arq Group (Melbourne IT, Net Registry, Web Central, Uber/Jumba, etc) as well as those owned by Hostopia or Dreamscape Networks. They’re all hostile towards their customers often put up barriers to make SSL automation as painful as possible.