You do not need to use all the minutes at the same time. They can be saved for later. These cards do expire July 31, 2013. Additional rules on the card are: This card is valid for 50 minutes of domestic phone time subject to the following terms. Purchase price includes all taxes. All calls must originate and terminate within the Continental United States. All calls must be placed from a touch-tone phone. This card cannot access toll free 900#, Directory Assistance, or International Numbers. Twenty-Five minutes will be deducted from the total available minutes for using a pay-phone. All Calls are rounded up to the next full minute. Service fees, local and/or regional and cell phone company charges may apply. This card does not add time to a cell phone. The card issuer is not responsible for lost, stolen cards or for unauthorized use of card numbers, rates are subject to change without notice. Cards are not returnable or exchangeable and have no cash redemption value.