Right now this is the only way to verify your account to be able to upload videos longer than 15 minutes. Are you not receiving the code when trying to verify? There's more info here: https://goo.gl/R9Pbgh
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
Right now this is the only way to verify your account to be able to upload videos longer than 15 minutes. Are you not receiving the code when trying to verify? There's more info here: https://goo.gl/R9Pbgh