We have problems too concon u.u
We could talk with some members of Vampire, but one of those said: 'i can't war without my leader' and it's okay,
so we contact the leader (who was afk) and he gave us a date to play but he wasn't online at that time :P.
Also, we posted 3 reminders in their thread but they just pay attention on the third.

Our thread. (it's in spanish :P)
Their thread.