A family of Microsoft products that enable users to capture, organize, and reuse notes electronically.
Hi,
I’m sorry you’ve lost several days of notes. This is a user-to-user community. No one here has access to accounts or is able to create or escalate a Microsoft support ticket.
If you haven’t already, check OneNote for the web and Android’s Misplaced Sections for another copy. If the changes never synced and the local copy was removed, recovery may not be possible. Avoid clearing app data or reinstalling OneNote while checking.
https://support.microsoft.com/en-us/onenote/onenote-help-and-learning/how-to-share-a-onenote-notebook
https://support.microsoft.com/en-us/onenote/what-s-the-difference-between-the-onenote-versions
To contact Microsoft Support, open the link below in an In-Private window:
https://support.microsoft.com/contactus#!
Click on Office 365 > Type "Technical Support" > Get Help > Scroll Down to " Ask our Support Assistant > Login if it asks > In the Support Assistant Preview, type "I want to talk with a live agent" > Click "Contact Support" > Select Your product > Click "Chat with a support agent in your web browser".