You can see the error message "Download permission required. Contact organization admin." when you try to do the following: Download patches using a credential that does not have necessary privileges.
An Organization Administrator on your account must grant you Download permission before you can download software and updates from Red Hat.
This is the highest permission level with full access to content and features. This is the only role that can manage users and control their access and permissions on an account. An account may have multiple organization administrators.
Contact an Organization Administrator on your account to request permission. Refer here for more details.