What's all the info Blizzard need when changing email over the phone?

Hi guys,



I was just wondering whats all the info Blizzard ask for when you call up and ask for them to change your email address for you?



I know obviously first name and last name, and the secret answer.



Do they ask for your physical address and phone number?



Thanks guys.What's all the info Blizzard need when changing email over the phone?probably most places do as added securityWhat's all the info Blizzard need when changing email over the phone?For just changing the email, you only the names and secret answer.