Support cases can be created via ServiceNow - https://bentleysystems.service-now.com/csp
More on ServiceNow can be found here - https://communities.bentley.com/communities/other_communities/bentley-support/w/bentley-support-wiki/63979/important-change-to-your-service-request-portal-effective-may-4-2023
If you require immediate assistance please call our support line - https://www.bentley.com/en/about-us/contact-us