You'll not be able to make changes to a custom URL, instead you'll need to remove it and request for a new one. More info here: https://goo.gl/qUUGLK . Hope this helps.
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
You'll not be able to make changes to a custom URL, instead you'll need to remove it and request for a new one. More info here: https://goo.gl/qUUGLK . Hope this helps.