I have signed up for an EA Origin account but can't get into the BF3 Battle Log on the PS3. I noticed that the Battle log shows another email linked to it and I can't figure out how to change it. I go to http://battlelog.battlefield.com/ and use my Origin account to sign in but it won't even let me log in.
I had this same issue. What i did was go onto a computer, log into the account and change the email. This can not be done from the ps3, it has to be done from a computer.