One month for one hour...

Ok, i'm officially angry... there has been an in-game event that wouldn't work.
Bug reports have been sent, tests have been made for a whole month.
Yesterday i've been told by the developers that the issue has been fixed, i go on and try it, asking the players to help... again...
Same result as always.
I sent yet another bug report explaining that the event still doesn't work and i receive this reply:
"Ah! The event has to be set up one hour before the beginning for it to work"
And you tell me that one month later?
No comment...