nintendo linking

emeraldwolf_24​ From what it looks like, you haven't finished setting up your EA Account or there's another issue preventing the account from being linked, (which if you had linked another Switch Account to this EA Account before in the past, that would be why).

XHelperZ wrote:

Keep in mind that if your Nintendo Account is linked to your EA Account, it won't show up on the Connected Accounts page.

XHelperZ​ Actually, it will show up there if its linked, however it cannot be linked from that page:

My EA Account

Example EA Account

XHelperZ wrote:

To link a Nintendo Account to your EA Account, you'll have to launch the game from your Nintendo Switch, and it'll prompt you to log in with an EA Account & Link to it.

emeraldwolf_24​ This is indeed how you would link your Switch Account to your EA Account though.