DNSSEC setup with cloudflare name servers

  1. The documentation says that DS record should be added to your domain DNS configuration at the registrar.
    Though, If the name servers are at Cloudflare, there is no way to set the DS record with the registrar. (which was also what the registrar support told me)
    I’ve set the DS records in the Cloudflare DNS yesterday (more than 8h ago) and DNSSEC is still not activated.
  2. Do there need to be DS records for the subdomains as well?

Registrar support of whom? Cloudflare?

Whats the domain in question?