I have only had phone 1 month, CPW sold it as unlimited internet, which is hardly what I now have. I have used about 300 mb in a month as have not been away anywhere, so use wifi when at home. I think a fairer system would be allow you to have a rolling amount, so if I use 300 one month and then 700 the next thats still classes as allowable at no extra charge, this does seem to target people who have kept within the limit, as heavy users can now cancel their contract keep the phone i presume and get a better deal elsewhere?!, whilst we are stuck with the worry of being charged extra when we may go slightly over.... seems unfair...