I know that there are many posts like this that tell you how you can keep an account that you have scammed. I don't know that this hasn't been posted, but i didn't find anything when i searched.
What is needed:
() Account Name
() First/Last Name
() Secret Answer
The basic idea idea of this is to dispute the account, while you have access to the email on the account, in a way that tells Blizzard knows that multiple people can prove ownership of the account. In this situation Blizzard will disable the ability to change the email of the account by phone.
In a situation where you have all information needed what you need to do is call the Blizzard's Billing and Account phone number and change the email on the account. You will have to call and change the email multiple times, about 3-5. This can be useful if you want to keep the account but don't want to pay the money to create a new account and transfer the characters off.
Note that the amount of time that email changes by phone are suspended varys. Upon calling the Billing and Account department while email changes are suspended, they will NOT tell you how long email changes on the account have been suspended.
Oppochaos