You do not have permissions for creating an agency on the IAM console.
Possible Cause
You do not have permissions to use IAM.
Only the following users can use IAM:
Account administrator (with full permissions for all services, including IAM)
IAM users added to the admin group (with full permissions for all services, including IAM)
IAM users assigned the Security Administrator role or an xxx FullAccess policy (with permissions to access IAM)
Solution
Contact the administrator to create an agency. For details, see "Creating an Agency and Assigning Permissions" in the Identity and Access Management User Guide.
Contact the administrator to grant you the permissions for using IAM. For details, see "Assigning Permissions to an IAM User" in the Identity and Access Management User Guide.