Just to confirm, are you not able to use your custom name? Are you seeing any error message? Let us know.
Just to confirm, have you tried availing the Custom URL using a different device? Keep us posted.
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
Just to confirm, have you tried availing the Custom URL using a different device? Keep us posted.