The last time was for using more bandwidth than was "fair" - 15gb a month for three months got me put on the heavy users service during peak hours. What a joke.
I transfer about 100 GB on an average month. How do you survive?
(If I manage to transfer data at full speed 24/7, I could transfer approximately 31.6 TB (via the Internet) in one month.)
(On another note: 1 megabyte = 5 bytes per arcsecond).
"Stephen Wolfram is the creator of Mathematica and is widely regarded as the most important innovator in scientific and technical computing today." - Stephen Wolfram
We switched to a service with a 40gb monthly cap after a week of the heavy users bandwidth - I use 39gb a month, and the rest of the family uses 1gb between them. At Uni I've been using about 75gb - 80gb a month.