Okay so I bought a used PS3 from a friend a while ago. And I don’t know who owned it before then but they left their PSN account on so I figured I would use it. Now I have played lots of games and have good stats on Call of Duty: Black ops. I don’t wanna make my own PSN account and loose all the stats but I don’t know the password it’s set to log in automatically and I would like to change the account to my email and erase the billing and credit card information if there is any. Please help!