Yep, and they might ding your credit report too with a "potentially negative item" of "over limit".
I went over once because they mailed my damn bill to the wrong address and before i got the next months statement, there was a late fee, an over limit credit hit and a rise in APR. I hate all CC's. I had to call and bitch at someone at the India based call center which is always a lot of fun! lol
So I paid it in full 2 days after it arrived, and next month got another one saying I had a balance due of $1.48. I swear, anyone who calls selling adult site access on the internet a 'racket' is just not up to speed on rackets!