Or It might be worth having a look here to start with:
https://help.ea.com/en/help/faq/problems-playing-online/
Are you able to reset the password on the related EA account?
To do so, go to help.ea.com, then log out, and then log in using the relevant system portal (PS/Xbox/Switch/PC), then try a password reset. This may help to get this sorted without having to contact EA help.
This may not work, at which point you can contact EA help by:
Create a new case
https://help.ea.com/en/contact-us/
Twitter
https://twitter.com/EAHelp/
Facebook
https://m.facebook.com/EAHelpHub/
Or It might be worth having a look here to start with:
https://help.ea.com/en/help/faq/problems-playing-online/
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