Well, it was registered with my Apple ID, my e-mail address, but with my sister's credit card and name. How do I change that name? Since iCloud links to the mail, and iChat, it says my sister's name in iChat. How do I change this? I already went to System Prefences>iCloud>Account Details>Name. I changed it, but it still says her name. I went to 'Manage...'>'View Account> and change the billing information to my name, but it still says her name. Any other possible ways?