I have no idea why, but I was charged an extra $68 for additional local airtime. How is this possible? I don't see any details about call history on my bill.
Amanda, you have 100 min in your plan plus evening and weekends starting @ 5pm. There were a number of calls in the last week of September and first week of October that were not made on the weekend or in the evening and pushed you over the 100 minute allotment. If you follow Robert's suggestion you will see the detailed logs.