ok, here is my problem.
1. Before I first started Fifa 15 on my ps3, I created an Origin account.
2. When I started Fifa 15 for the first time, on my ps3, I get a message that I have to sign up to an Origin account. I tried to use my mail, but I get every time the message "This e-mail is already in use"
So I had to use another e-mail, just realized that one don't exist?

So.. Can I change my e-mail on my ps3 (and how?), change it to my mail I used before I started fifa15 (1.)
This is a serious question, so only help me if you can...
thanks
