I want to change my SEN ID to my e-mail (E.X. Email1). But when I change to Email1. They said this email has already used. I'm guarantee I never use Email1 before. So, I use forgot password to recover password. When it ask my birthday. I put my birthday and they said birthday is not correct. I think it have someone use my Email1 to register SEN (cause register don't need to activate mail) So, If I know someone E-mail. I can register easily ?. Please help me. I need to change my E-Mail.
Anyone can create a PSN account using any e-mail address, but they won't be able to sign into the account until they confirm the e-mail address; and that requires having access to the address' mailbox. Either the account was created and never used, or it was created by someone that had the same e-mail address sometime in the past. Either way you probably won't be able to use that e-mail address for your PSN account, but you will have to contact Playstation customer support to make any progress with this problem (https://support.us.playstation.com/app/contact_options).