Thanks for the post , votes, and comments. We are aware of this limitation and are targeting sometime next year to improve this experience. In the meantime you can sign up for a new account in your desired country and transfer your assets to the new account via Support.
-Azure Billing TeamNathanaël supported this idea ·Nathanaël commented
I am facing this issue too because I've chosen the wrong country. In the future it's likely to happen that I will move on as well. This is not ok. Resolve this problem quickly. Thank you.