This behavior is due to the automated provisioning workflow within our billing and registry systems. When an order is placed, the invoice is automatically linked to the domain registration or renewal action.
As soon as an invoice is marked as paid, our system automatically triggers the domain registration or renewal at the registry.
If we were to register a domain manually in advance before the invoice is paid, paying that invoice later would automatically trigger an additional renewal year at the registry, doubling the registration period unintentionally.
For this reason, domain registrations and renewals are executed exclusively after payment receipt, even for existing customers.