as what i see, the chances for people who have used over 500 this month or last month, whichever applies, is bigger.. as this will directly affect their plan by 20percent more.. (just noticed theres no percentage sign on n900) ... however it still is possible to cancel under clause 11.2(d)... but im not too sure about that.. if you know your bill cut off date, and if its in the next few days, ill advise you to exceed 500 ASAP...