Here is an email text including a link in order to ask a client for permissions in Azure:
We need you to click on the link below to grant 9 Embers access to the [Church Name] tenant in Azure. It is imperative that you be logged in as the Owner (not Administrator or Classic Administrator). You can grant yourself Owner permissions if you already have the Older Classic Administrator role currently assigned instead of Owner.
Grant 9 Embers Access to Azure Subscription
Once you click on the link, click Review & Create and Azure will proceed with the deployment automatically.
Please let me know if you have any issues or questions!