First off, let me start by saying welcome to EA’s “Answer HQ”.
Answer HQ isn't just an ordinary message board or support center. It's a new approach to our community experience and a fun way of helping other players or to get answers (from players & experts)and get back in the game!

The best thing for you to do is to contact a game advisor (the nice folks over at EA support) for more help with this.  They will be able to assist you further for this issue you are having:

https://help.ea.com/en-us/help/account/linking-accounts-and-persona-transfers/
https://help.ea.com/en-us/help/account/accidental-second-ea-account/

Follow these steps:

*Note that some players may have issues when using Internet Explorer. If this is the case, please use an alternate browser such as Firefox or Chrome*

Contact a games adviser any time using this following link https://help.ea.com/en/contact-us/new/

1) Click on your game or search if it isn’t listed.
2) Select a topic for the best results.
3) Scroll to the bottom and select Contact Us.
4) Select your platform and list a short description of your problem.
5) Select live chat or call me to request a call back from an adviser.

Hope this helps.

For help on how to contact an Advisor please use these links:
https://answers.ea.com/t5/EA-General-Questions/How-to-contact-a-Game-Advisor-using-the-new-EA-Help-p...
http://help.ea.com/en/article/contact-ea-help/
http://help.ea.com/en/article/how-to-attach-a-file-to-your-ea-help-ticket/
http://answers.ea.com/t5/Origin/How-to-contact-EA-Help/m-p/5650100#U5650100