Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Hi Kudzai,
Thanks for posting the question on our forum.
As you are using SharePoint on-premise and this forum category is mainly focused on SharePoint online related questions and issues, to make sure you get the dedicated support, we suggest you post the question in our TechNet forum, this is the specific channel which handles SharePoint on-premise related questions.
I would like to help you, I have searched this on internet, I found that Office 365 Business Premium has SharePoint online plan 1 license, SharePoint online (Plan 1) include base CALs, for more information, you can refer to the following article:
On Premises CALs included with Office 365 subscriptions
If you need further help, I still suggest you post it on our TechNet forum for dedicated help.
Thanks for your understanding.
Qing