Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Dear Josiah Perrin,
Greetings!
Thanks for posting to this community.
Based on your description, I understand your query about billing invoices for your year-end accounting practices.
It seems when viewing your invoice in the Microsoft 365 admin center your invoices are incorrect (and missing). Since we belong to Microsoft Community site, our forum is available for public. Also, we are not authorized to check any users' billing details and have limited resource and privilege to examine billing related scenarios.
So for your billing related query, we sincerely recommend that contact our dedicated Billing support team via Microsoft 365 admin page, see Get support - Microsoft 365 admin | Microsoft Learn or directly by phone support Global Customer Service phone numbers - Microsoft Support. They will be able to assist you in investigating the charges and resolving the issue.
Thanks for your precious time and your understanding would be highly appreciated. Have a nice day!