Disabling time slots Before 24 Hours from Now

Hi,
I'm trying to make it impossible for someone to book an appointment less than 24 hours in advance. I've selected "24 Hours from now" in the Venue management section, but it seems to have no affect. People can still book same day appointments. What am I missing?

Hi Matt,
Could you please open OS Services Booking Configuration -> Tab: Layout Setting and enable configure option: "Skip unavailable dates". After that you can check to see if the "Disable booking before" feature is work or not.
Thanks
Dam

Hi Dam,
That did not change anything. It still is allowing me to put a time from today into the cart.

Hi Matt,
I am afraid that you need to submit ticket on category: OS Services Booking and provide your site credentials for checking this matter.
Thanks
Dam