Trouble with Achivement

[oshribyy3]

Hello,
Yesterday the alliance did For the Alliance.
We did all the bosses, but on Thunder bluff boss
everyone got achiv, and i didnt,
someone told me wait 10 min and you'll get it .. well.. i didnt
i was in raid and was in everything..
here some pictures :




Hope you guys can fix this.
Thank you,
Seaside.

[oshribyy3]

UP!, Please help

[Snak]

There is no support for things such like that. Just kill this boss again.