So I've helped Natalie offline with this.
The primary issue is around provisioning a tenant, managing users and licenses for someone who has no experience with this, so they can utilise Minecraft Education Edition with their clients in a secure and safe way. The instructions can be found here https://education.minecraft.net/en-us/get-started/it-admins, though I appreciate the overwhelming nature of cloud administration to someone who doesn't work in this area.
Pleasure working with you Natalie