Limits? I was not aware that ISPs had limits.
What they like doing is offering you an unlimited service but then slamming you with a Fair Usage Policy.
It's a Loophole and a new trend in the UK.
Basically, before you buy the car, they tell you that you can drive as far as you want.
And once you're signed up they tell you that you can drive as far as you want but you are subject to a Fair Usage Policy. Meaning they will stop you if you try to drive too far.
Make sense of that fellas. :)