rate plane set up

I am trying to set up rate plan with Member discount and Mobil discount rate blocking day of arrival I am not able to get any help from Booking anyone how I can accomplish this to avoid parking lot booking






First mobile 10% if enabled stacks against all, rates and discounts. 


The genius member level does also, but can be limited to 10% -15, and limited to just one room type.


Why would you not want bookings, even if they never stay in room, to just park, to attend say an event nearby.