ManFurismoJive
Coming to a sandtrap near you!
Looking forward to some clean racing. 👍
You will need to have another E-mail address for the allow you to access the store.
Do not delete your other account or you will lose all DLC, trophies etc.
Sorry if I'm stating the flippin obvious but have you tried creating another user on the PS3 console.... Go all the way to the left of the XMB and create new user... You need one of them for each account.
Hope that helps?