Deleted user
When I log in I'm having to type in the e-mail address of a friend who initially put his contact details down when helping me set up my account. I have since taken over control of my own account and would like to delete his e-mail address and replace it with mine which I have down on my account as my contact e-mail address. How can I delete his so I log in with my e-mail address? I don't want him to have access to my account anymore. It looks like my account is set up with 2 users. I'd like to change this to just me as the user. Please help.