My dad will use 10 minutes a month. Does the 100 last until it's used (carry over) or expire every month?
I believe that it does not carry over to the next month. What are the rest of the problems that you have? There are a lot of possibile problems that can be solved if you ask here because there are a lot of people who will be able to answer. I know that there are some people who will ask about the carriers which can easily be answered as well. Make sure that you take a look at the phone itself because there may be problems that you have. There are some carriers that have some problems with specific intricate problems as well. Make sure that you take everything into account so that there are no issues.