so when your SL usage went through the roof you did what? This is a very narrow minded view. This is a problem which affects a large number of people. I'm quite sure the majority don't check daily, but they do check monthly - by which time they will suddenly be faced with a huge bill which they've never received before - simply because LL didn't check something again.
Blaming users for programmer mistakes is all too common. How about giving users a break too - they will check, and they most certainly should not be given a bill for £200 because somehting they've used with no problems for years and months has suddenly gone through the roof