Here is a message from HumanaOne.
Thank you for your interest in HumanaOne. At this time, rates are not available for dependents with effective dates of September 23 or later. If you need coverage immediately, primary and spouse 19 and older may apply now. If coverage is issued, you may apply to add dependents once rates are approved. Please check our website later; as soon as rates for dependents under 26 are available, the website will be updated.