Wait, are you speaking appropriate to the save or internet because of the fact based on your wording, curiously like your attempting to get admission to the previous proprietor's psnetwork account it is prohibited because of the fact its no longer rightfully yours
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You can go here and click sign in then forgot password:
http://us.playstation.com/psn/community/
Or create a new account
You must know the email address and DOB (Date of Birth) on the account:
PC - https://store.playstation.com/accounts/manage/begi...
PS3 - http://us.playstation.com/support/answer/index.htm...
If you don't know the email or DOB, you will have to call Sony: 1-800-345-SONY (7669).
Those are the only ways to reset the password.
Wait, are you speaking appropriate to the save or internet because of the fact based on your wording, curiously like your attempting to get admission to the previous proprietor's psnetwork account it is prohibited because of the fact its no longer rightfully yours