I checked and you should be able to update your location and the city. Please remember that all the fields need to be filled out before updating. Could you please try clearing your cache and cookies or using a different browser? If the problem persists, please send us the screenshot from your end so that we can take a look.
I also need help changing my country back to the US. I'm a Michigan resident and tried to change my address back to Michigan without luck. When I try changing it, it just loads and loads forever