The prepaid credit is a payment method which is available to you for subscribing to products and domains and renewing them.
The credit can be used for the purchase of domains or products, for the manual renewal of domains and services or for the automatic renew al of domains and services.
If you have activated automatic renewal, you no longer need to renew your products manually. The renewal fees will be automatically deducted from your credit balance.

No invoice is issued for the purchase of prepaid credit. The credit will only be available in your Control Panel.
The invoice will only be issued when you purchase/renew the selected product.