Most of my clientele fly very UTR. With that comes not as many reviews. I'm okay with that, but I don't understand either if they are a big reviewer and don't review you, but other girls.
Happens to me too. Sometimes they think we don't need them if we are already reviewed. Girls always need a review here and there.
Also some guys may want to keep you all to themselves and not review, because your that good!
Have you tried asking them politely or mentioning that if they had the time you could use one?
Best,
Scarlett