How to remove your Origin (Electronic Arts) account
From their forums: To close an account, you will need to contact Customer Support, via https://help.ea.com, then select the “Contact Us” button on the lower right. Once complete, select from the options at the top of the list, and you will be presented with up to 3 different ways of speaking with a representative.
Helpful Trick: Removing online data
Publicly visible text/images often aren’t properly removed even when you succeed in removing an account. Try editing or removing them manually before removing the account itself. If you’re unsure what happens to your tracks: this can be found mostly in the Terms of Service/Privacy Policy; otherwise you can always contact Origin (Electronic Arts) and ask personally. By the way, removal requests don’t necessarily mean your data will actually be removed (e.g. due to legal obligations).
Helpful Trick: Remove third-party logins
If you signed up for Origin (Electronic Arts) using a third-party login such as Facebook or Twitter, you probably want to revoke all access from Origin (Electronic Arts). Click here to find out how.