http://www.youtube.com/watch?v=Gp0HyxQv97Q (I was hitting my head against the desk at about 3 minutes into the clip.)
Essentially, this guy was told that he would be charged: ".002 cents per kilobyte."
But when he got the bill, it was $71 dollars. He was charged at the rate "$.002/KB". That is, .002 dollars per kilobyte.
I am astonished that all the people he was calling couldn't understand the difference. Kinda scary, actually.