Recurring payments refills your account balance when it goes to 5 credits or less. This ensures you never run out of credits while you`re using the service. You`re able to opt into this feature when you make your first purchase. You can enable or disable this on the payment window when you`re selecting a package to purchase. Select the credits tab and click on the “buy more credits” button. Click on the checkbox to enable/disable recurring payments. You can also do this at the bottom of the “profile settings” page. Click on the arrow pointing to the bottom of the screen next to the portrait icon. Select the “My Profile Settings” option. You`ll find an option to enable or disable recurring payments at the bottom of the page.