I can only write what I would do.
I would write the person who changed the Information and ask why they changed it and if they have sources for the changes.
And if he has sources, he should add them as image so that you compare them.
After waiting two weeks I would change them again and write a remark on the changed profile why I changed them again. And the most important thing is to add your sources. Good would be as image so that everybody could read them.
It is a mess but if IT is an open profile, I think you cannot do anything else.