Two similar ancestors, but not the same person
My 6th great grandfather is listed as the wrong person, and everytime I change it to the correct person, someone goes in and reverses the changes. I have physical proof of the information on him and even posted it on the one that's connected to my tree (which is not the correct person). How do I switch these two's positions so it's correct? One is my 6th great grandfather and the other is like my 10th cousin seven times removed.