My property details are wrong. how do I correct?

Hi

I have my property (a 2 bedroom cottage) set up for a maximum of 5 guests self catering (2 private bedrooms, 1 with a double bed, and the other with a double and a single bed).

I have set the listing to maximum 5 guests

Or maximum 4 children (with 1 adult)

But when i look at the booking options from a guests point of view, it shows the property only sleeps 4.

However, if I put in the calendar options, 5 adults and 4 children (9 guests in total) it still lets me go through to the booking page, doesn;t warn me that I'm trying to book 9 guests, but still reads 'sleeps 4'

Any advice on what needs changed to allow the reservation system to show the correct number of guests etc.