Yup. I went down this rabbit hole last month.
I created an EA account 10 years ago. I can log into that email account and see I ordered Titanfall when it was released on 3/11/2014 as well as several other games. At some point I created a NEW EA account using a different email address. This is the account I've been using for the last 9 years. Last month I purchased an XBOX series X. When attempting to play any EA game I receive a sign in error that asks me to reset my password. I reset and it still wont let me log in. It provides this link. https://help.ea.com/en/help/account/im-locked-out-of-my-ea-account/
I created a case and spoke with EA customer service on the phone. They confirmed that I will never be able to play any EA game online because my old/deleted EA account is not recoverable...and there is nothing they can do about it. I couldn't believe it so I asked him to repeat it. The customer service rep was so at ease telling me this. Like he has to tell this to people all day. Super frustrating experience. Nothing new for EA but this is why I won't be purchasing any of their products anymore.