Joe, if you (general you) use phone minutes wisely, and don't waste them all, they should last you until the next month. But if you're talking, texting and watching videos on it, then yes that WILL eat up the minutes very fast. My unused minutes roll over every month, meaning I don't lose them. I currently have 7,626.32 minutes on my phone..
Obviously this person is doing something on the phone that eats them up quickly.