Once you hit your milestone, it can take 1-2 months for the code to be ready. You'll be notified in Creator Studio as soon as it is. Feel free to reach back out if you still need help in a few months. Congrats on 100k subscribers!
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