Amenities comparing two rooms

I have 3 glamping pods, 2 of which do not have hot tub and 1 that does - after much debate with customer services, we have had to call the one with hot tub 'chalet' but notice that on the booking.com site, the hot tub doesn't come up as an 'icon' amenity until you click for more amenities then it comes up there as part of the 'tick' listed amenities.  Clearly the hot tub room is more expensive so I would like that amenity to be clearer when the guest is checking the difference - we had a guest turn up this week thinking they had the hot tub so please does anyone know how to do this as customer services don't seem to be able to help.