Within 30 days after issuance a certificate can be cancelled by sending an email to email@example.com. Please mention the domainname, the reason for cancellation and the Order ID (you can find the Order ID in the certificate details in the Control Panel). After cancellation you will receive a credit invoice.
Note: Upon cancellation, the certificate will be revoked and credited. Vice versa, when a certificate is revoked via the Control Panel it will not be credited, a separate request per email is needed for this.