Here you are:
(1) Straight Talk Auto-Refill: You may enroll by registering your credit or accepted debit card (with Visa or MC logo) at www.StraightTalk.com/autorefill and you will receive a recurring charge to your credit or accepted debit card on your Service End Date each month which will automatically refill your Straight Talk service with the Straight Talk Plan you select. **Please note: Your Auto-Refill is determined by the last plan or card you have added to your Straight Talk phone. For example, if you purchase a 3 month Service Plan, your Auto-Refill will occur every 3 months. To change this, you must call Customer Service and speak with one of our Customer Care representatives. If you have any Service Plans or Cards in your Straight Talk Reserve, those cards will be applied first before an Auto-Refill purchase is processed. Once you have used all Straight Talk Service Plans or Service Cards in your Straight Talk Reserve, the Auto-Refill purchases will resume.