CircleCI offers 3 Premium Support Plans: Silver, Gold, and Platinum.
You must contact our Customer Success team in order to select the Premium Support plan that best suits your needs. You can contact them by filling out this form here: https://circleci.com/support/premium-support/#contact-us
You can learn more about our Premium Support Plans here: https://circleci.com/support/premium-support/
Related: Support Plans and SLAs