Today's tweet got a lot of feedback from friends saying that the region can be changed, and even provided a tutorial on how to do it. But I'm sorry to say, this is incorrect. What’s actually being changed isn’t the region on Twitter—it’s the account on Stripe Express, which is the account used to register for Twitter monetization. This account is what determines where you’re conducting your earnings-related activities. The address here cannot be changed, especially in the 'business type' section.