If you have some question about your diablo 3 account

If you have some question about your diablo 3 account. maybe this tips can help you.

There is an option for "My account does not have a last name". But if you are one of the rare people that have not merged any accounts into a battle.net one, you might have to do that first. Try any first names and nicknames you had that were popular for you at the time you would have created the account.

Also, here is blizzards billing number: North america 1-800-592-5499 7am-8pm Pacific

They will help much better than we can on here, and if you call before you start trying our methods to fix it, you wont have long to wait for them to pickup after giving up on our way of doing it