Called #bal think its wrong...?

cuz my last bill was pretty big cuz i called home from a xcruise and went over txts but i checked my balance today and it says the same price as my bill from july which is weird .... maybe it still has it from july cuz i didnt go over or anything and it'd be too much of a coinsidence if it was the same amount including the cents.... maybe it didnt reset also is *67 free