Smallstep primarily offers support for premium cloud-hosted accounts. If you want to use step-ca with support, contact us for details.
Smallstep open-source `step-ca` is supported by the greater user community and can be found on Discord here. Start with our #getting-started and #introductions and look for the help channels that best describe your usage.
We do offer support contracts for open-source implementations. If you're interested in having dedicated support on your open-source implementation, contact our team and schedule a discussion.