Cannot edit Name or Work Phone in "Basic Information" section of About Me

I would like to adjust the name and work phone in my profile, but cannot find a way to do that. 

1. I've tried clicking the Account Menu--> About Me--> edit, but there is no option to edit the Basic Information section where the name and work phone are displayed. 
2. I've tried clicking the Account Menu--> My Settings, but again there is no functional option to edit anything. There is an Edit Item button at the very top of this screen, but there are no entry fields that can be edited from this pane. 

I am using Safari 8.0.2 on a Mac running OS X to access my account via the web.