Are you in the UAE or a different country?
Yes Im in UAE and my 99.9999999% users are also based in UAE
What country is selected by default for you?
From offce desktop - US, Samsung note - UK, Home desktop - UK, iPhone - UK
What language is your computer/browser set to?
offce desktop - US English, Samsung note - UK English, Home desktop - UK English, iPhone - UK English
What does this tool say for "Your browser's Accept-Language header:"?
Your browser's Accept-Language header:en-GB,en-US;q=0.9,en;q=0.8,fr;q=0.7
Which OS and browser are you using?
Windows 10 and chrome every where except iPhone.
Result were same even with samsung browser on my Note.
Picking country based on language was not an ideal solution IMO.