Simply go to the Scratch app on your phone and select Add Pass. Select either a voice or data pass. You will be prompted to enter your Scratch PIN to complete the purchase.
If you need more or simply don't want to think about it, you have the option to make the pass recurring to keep you connected all the time. But there's never any contract or obligation. It's always up to you. Turn off recurring at anytime.
You will be charged once your current voice or data pass runs out. The auto-renewal feature will automatically charge the indicated amount to your credit card.
If you receive an error when purchasing a pass, ensure that your billing address matches the one on file. Mismatched addresses are a problem that we frequently see for card declines.