There are a few reasons why you may be unable to request to stay at a site for selected dates.
You've already requested to stay
Check your pending booking requests to see if you've already requested to stay at the site.
You've reached the maximum booking requests
Guests can have up to five active booking requests at any time. If you've reached the maximum and would like to request to stay at another site, you can cancel any active booking requests.
You've been accepted to stay elsewhere
Once you've been accepted to stay at a site, you cannot request to stay at another site for the same dates.