Now I'm MAD

After ALL the invitations for Victoria's party have gone out the idiots (too mild a word but trying to keep it G rated) have gone and booked another function over top of us!!!! I am SO mad!!!! I now have to scramble to tack down all the kids invited and tell them of the changes...and even worse I have to find another venue for the party! So mad!!!!!! Anyone want to help me with this party????