Just to confirm, have you already tried changing your account level language settings with these steps: https://goo.gl/esKuSQ ? Let us know.
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 already tried changing your account level language settings with these steps: https://goo.gl/esKuSQ ? Let us know.