I have 140 dollar chrage on my bill for extra local airtime minutes. My current plan includes unlimited minutes, but I just changed it at the beggining of my cycle (The 17th) from a 200 minute plan. I dont know what's happening, when I look in my usage and phone logs on here I don't have any overuses on my minutes, checked data too and it all looks good. Anyone know what may be happening or should I call in? Could it be a mistake? I looked at customers who have previously had an issue like this and it was explained that it was proration but, since I changed it at the beginning of my cycle, this shouldn't be applicable, right?