Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Hi @Michael Donahue,
Thank you for reaching out to the Microsoft Q&A forum and for clearly outlining your concern.
Based on the details you shared that you are the only user in your business and need your email to have Microsoft 365 admin rights, and that the same email and password are not accepted when you try to download an application. I truly understand and appreciate your effort.
As this involves sensitive information, I will send you a Private Message with further details. Please reply to that message with additional information about your email and your domain so I can continue checking this for you and tailor the next steps.
Thank you for your cooperation, and I look forward to your reply.