Yes, it should work just fine.
Could you please tell or show me when exactly do you see this error? (here or via private message or support ticket).
I see you have an account in our Customer Portal registered with the same email address as here on the community site.
It seems it's not activated account, I've sent you an activation email.
Once your account in our Portal will be active you should be able to order CMS Cloud hosting from the Shop page.