How can I change country and billing adress? For updating

This article describes how to change your country setting on everything using your Apple ID, and the requirements and results of doing this:

Read how to "Change your Apple ID country or region", click here --> https://support.apple.com/HT201389

Note that if you change countries you may find that some apps will not update if they were not also in your new country. I would advise you update apps first. For apps on a mobile device --> App Store app > Updates, or select your icon in the upper right corner > click update all or select individual apps.

Q: How can I change country and billing adress? For updating