The process of renewing a certificate is more like getting a new certificate except you need to generate a new "CSR" code. You will be allowed to renew a certificate within 30 days of its expiration. When a certificate is close to expiration (30 days) an invoice will be generated for renewal.
Once, the invoice has been marked as paid, Please click here to find more information on how to generate the CSR and also proceed with the installation of the certificate.
Note: If the status of your certificate appears as "terminated", you need to begin the process afresh.
