Limited amount of guests in my single room

Hello everyone,

I just uploaded a room of my property in booking.com. As it is a single rooms I need to limit the amount to of guests to 1 Person.

My settings are correct (as confirmed by booking.com by phone). They said they will correct it but so far nothing happened. I just checked and it is still possible to basically book 2 and more person in that room? 

Also the number of rooms can be booked 2 and more, even though I set the amount of rooms available to 1. 

I stopped the add now as I got tired to explain to people that the room is only for one.

Anybody with a similar issue out there?

Thanks a lot