That happened to me a few years back @ SL. I then just switched to doing walk-ins instead of calling ahead. I got who I got. When asked why I don’t see them I either say they were off that day or in a session already. I would look ahead at the schedule to make sure more than half of the girls I have already seen before and liked so the odds of me getting someone I liked was high. Upon the walk-in in I might even ask Renee or the receptionist if either X,Y, or X is available to avoid a girl who’s session was not as good.
If I did a walk-in today they have Cindy, Coco and Aaliyah who I’ve seen before and had good sessions, Yui I haven’t seen but is on my TDL and Jojo who I know little about. So, I’d have an 80% chance of getting someone I want to see.