Curse a few times before ringing them and explaining you needed it tonight and demand they apologize You are disappointed but try to make a new plan You get so angry you think of some way to punish them for this You ring them up and give them an earful. The cheek of it!
We are proud to have people like you interrupting the spread of the myths and inaccurate information and presenting the truth, which has become such a rare commodity in our society. Keep it up!