Running low on credits? You can top up from your billing area.
Credits are sold in monthly packages, with separate packages for geogrid credits and keyword credits. Choose the package that matches your monthly usage - remember that geogrid credits roll over while keyword credits do not.
Need a one-time top-up instead of a recurring package? Contact support and they will add credits to your account.
Not sure how many you need? See Understanding Credits to estimate your monthly usage first.