Horde -> Alliance transfer

[Spiffus]

Hello folks, I know alot of quetions has regarded this very topic.
However is there anyone who can explain me why I aint able to change faction from horde -> Alliance?

When I am to choose my characther under "services" I somehow cant change the faction.
Ive tried with my level 70 warrior?

Thanks in advance.

[skullatbash]

http://forum.warmane.com/showthread....=1#post2817185

[Spiffus]

Appreciate the help, thanks!