Hi Jdepoort,
To identify whether the issue is related to your account or your Mac machine, could you try with our test account which can activate Office for Mac successfully on my Mac machine?
Besides, if it is convenient for you, could you check if other students such as your classmates in your school can activate Office for Mac properly?
To protect the privacy, I have sent you a private message with the test account which have some small files in its OneDrive for Business library. You can access it via the steps below:
• Go to the Your details section on the right side of the community site.
• Click Private messages.
• Click the subject title to read the message.
Thanks,
Frank