You can find your Support ID in the upper-right corner of the screen when the game's loading, or in the settings menu on the Profile tab.
Open the game -> go to Settings -> In the window that opens, you'll see all your current stats. Go to the Profile tab, your Support ID is listed there.
Open the game -> go to Settings -> In the window that opens, you'll see all your current stats. Go to the Profile tab, your Support ID is listed there.
