Hi, I changed my plan last week when I noticed that for a couple of months now I've been going over my 100 minutes + free evening and weekend package. So I changed plans for the new 45$ unlimited plan. I thought that if you changed your package within the same billing time you automatically got the extra minutes you used for free since now I'm with the unlimited plan but I just got my next bill and it is not the case. I am %@&$ because now I have a 100$ bill to pay next month. I tried calling but since it is a holiday, they are closed. Should I have waited until the first day of the new monthly billing period to change my plan so that they wouldn't bill me the difference? Please help. I'd appreciate it.