By the way the renewal instructions from the provider are as follows, which I thought I was already following:
HOW DO YOU RENEW?
If you purchased this certificate through a RapidSSL Partner, such as your Web host or ISP, please contact your Web host /ISP to arrange for renewal of your certificate.
If you are a RapidSSL Partner and purchased this certificate on behalf of a customer, please renew the certificate through your Partner account.