Once you pay for the renewal certificate, you should activate it. In order to activate renewal certificate you will need to contact your hosting company and ask to generate renewal CSR for you. Ask them also to remind you what type of web server is installed on your hosting server. Then login to your WebSkrill account and activate renewal certificate by clicking Activate Renew link next to it in SSL Certificates menu.
The activation of renewal certificate is very similar to activation of a new one. You will need to select approval email address from the list and fill in administrative contact information for the certificate. The approval email is to be delivered to approval address shortly after you finish activation process. If you do not receive the email in 2 hours, please refer to instructions provided in What should I do if approval email was not delivered? article. When you confirm the issuance by following link in approval email you should receive the signed certificate to the administrative email address you indicated during the activation. Processing of order for certificate by Certification Authority may take about 2 hours. If certificate is not delivered in 2 hours please review I have not received my SSL certificate troubleshooter for help.