orit o.

Don't book hotels through Kayak. You will regret it.
Kayak provides the worst customer service in the industry. Modifying reservations is not allowed (they hide that detail by having a cancellation policy and not a word about modifying reservations).
Kayak also uses 3rd party companies to complete the booking. They say that only at the last stage of the booking. You'd think Kayak would assist you if there's an issue, since you are making the reservation through your Kayak account, but nope! Not at all.
These 3rd party companies are very low level. You'd never do business with them had they not been masked by Kayak branding.
Sorry. That's the way it is. Proceed at your own risk...