Hi KaceyA, support forums for Office 365 Home Premium and University are provided @ answers.microsoft.com/.../office_home, you may get a better response there.
Unfortunately as far as I am aware it says on the back of the package that Access, Publisher and OneNote are not available for Mac, and once activated I do not think it is possible to refund a subscription. If you want access to these applications you could always install Windows inside a VM or Bootcamp and use the PC versions.