I have moved. So I needed to change my billing and service address. I been through the online chat. Don ethe incognito browser. Tried on phone and pc. Still cannot edit. I wanted to buy a new phone but I'll need it shipped to my new place not my old one. Maybe someone it a tech support roll can help me.
I just tried to edit my profile and it worked fine. You need to click the edit profile button first before you can type new addresses in the boxes. Unless I am not understanding your question correctly.