Ok so there are a few noted ways to change the last name of the account for transferring.
1. Ring blizzard up and say that you have either been married or divorced
If you are saying you got married you can say that you wish to give your husband your wow characters.
If you say that you are getting a divorce you can say that you had a violent divorce with your husbnad and say that you think your account is under jeopardy.
Always be a women blizzard are much more sympathetic
2. fake ids you can buy a fake id of the interent for around 20-30 dollars
Most work and you dont need a picture of yourself because blizzard have no idea what youlooklike this is the bestoption if you have an account worth like 300 dollars but always try for the marriage thing first.
Fake ID by Next Day ID is a good site
Acting like a women
When your are speaking if your talking to a man GM use darl if he does soemthing good. I.E go cheers darl then talk about how easy theyv made it for you and that you were really worried that it wouldnt be changeable
Try chewing gum it will help wen your talking because it gets in the way chomp on in it to make it obvious your chewing gum, and may throw a blizz if theyre unsure, they will think its just because your eating.
At the start make your apolgies for the bad reception on your phone and say that you have your husband round helping you change the name incase you slip into a manly voice by accident.
Ask a lot of questions to show youre unsure of the process.
If you have any more ideas post and ill put them in