iPhone X changes region all the time, on it's own
I recently went to the USA, about a month after I returned my iPhone X had decided to change region to American (US) whenever it wants. This means I can't make calls as it changes the format of my saved numbers. I have to go into settings,general,Language&Region, change it to United States then change it back to United Kingdom.
This can happen once a day or ten.... again, I'm doing nothing, the 'phone is changing on it's own!
iPhone X