origin and need for speed network

Hello, at a certain point in nfs rivals my ps3 created a origin account without me having to fill in a e mail or password, i created a new origin account with the desired e-mail but now i have to change the account that my os3 thinks is the right one, into my newley created origin account, how do i do this?

Sincereley,

Kaiman25

{I apologise for any wrong spelling.. I'm dutch so my autocorrect fills in dutch words sometimes}