Hi jeremylr888,
Thanks for this additional information. We're glad to help you find out how to get the most out of your service. It sounds like you're on a regular post paid account, so a prepaid refill card won't work to get you more minutes. We've got some really great new plans that will give you all the minutes you can possibly need without increasing the bill too much, if you think this increased usage is something you'll continue to see. You can check out our individual plans here: http://www.t-mobile.com/cell-phone-plans/individual.html and if you see one that will meet your needs, you can log in to my.t-mobile.com to upgrade any time.