Originally Posted by
Verye
Little known tip:
If you want to test a last name to see if it works, do this.
Make a trial account with that last name. Then, attempt to transfer a character from the scammed account to the trial account.
Blizzard's transfer system apparently does a last name check before it does a trial account check. So, if when you try to transfer it, it says "the destination account is ineligible for transfer", then the last name is wrong. If the last name is correct, the system will verify that but then see that the destination account is a trial account, so it'll say something like "the destination account is a trial account, you can only transfer characters between two registered accounts." Meaning, if the message you get says "you can't transfer to trial accounts", then the last name matches.
This trick has been confirmed to work. So, just make a trial account with the last name Villhelms, try to transfer, and see what message you get.