The Word file on my mobile phone has been reset

All the changes I made to the file this month were lost. This happened when I was in an area with a poor internet connection and tried to open the file. I'm almost certain that I saved the changes to both the cloud and my phone's internal storage. The file took a long time to load and opened as an old version. I can't find a way to restore it, and the version history is not available. For some reason, OneDrive now only has this version of the file. Is there anything I can do to get the newer version back?

I would appreciate any advice you can offer!