WotLK I have characters in my account without Names and cannot login with them

[Buduu]

i played long ago warmane and i come back to play again, but, my characters have not names, and when i try to log in with them i cant.
there are something i can do?, i really want to play with my old characters again.

[Obnoxious]

Try to log in with each a couple times. They have been flagged for a rename since you were inactive. You should be prompted to give them a new one, but it doesn't work right away for some people.

[Buduu]

Thank you!!, that worked, thank you so much!