SmartyAadi basically answered and I know linked you over to Topic I have going. I’m just going to copy/paste a template I have for when someone asks the question you do (sometimes just removing the top paragraph). So here we go:
Keep in mind that the region not supported error is referencing that Brave has stopped allowing Users to connect to Uphold or Gemini in those regions. It doesn’t disconnect people if they were already linked to Gemini or Uphold. Therefore, your computer would be linked if you did it before Brave stopped supporting the country but your other devices wouldn’t be able to connect because you tried to do it after. Also, it means when your computer does get disconnected, it won’t be able to connect again. (Disconnects every 90-120 days on average)
In short, your country isn’t supported right now. It likely will be added again here by the end of the year, but we are waiting to see what’s happening. (And there’s a lot of articles & posts on this if you would have taken your time to search for answers)