How Do I Purchase a CBH Instance When the System Prompts that Resources Are Sold Out?

When you are prompts that resources are sold out during purchase a CBH instance, you can perform either of the following methods to solve the problem.

Click in the upper left corner of the management console and try another region or an AZ where you can find available instances.
You can also submit a service ticket.

Submitting a Service Ticket

Log in to the management console.
In the upper right corner of the page, choose Service Tickets > Create Service Ticket.
In the Products area, choose More Products, and click Cloud Bastion Host under Security.
Select a subtype, and click Create Service Ticket, and fill in required information.

In the Problem Description area, describe what you need and why.
After all mandatory parameters are configured, select I have read and agree to the Tenant Authorization Letter and click Submit.