@Kruewan0
Hey, a little bit tongue in cheek but, I would just let 'sleeping dogs lie' !
This is literally the ideal guest, the one who books, pays, doesn't turn up and doesn't require a refund!
Gee I would love a few more like that....and I sure as hell wouldn't bother about getting involved in the review process. You don't know what sort of a can of worms you might open by going down that path!
If the dollars are in your account say...'Thank you very much' and move on to the next guest!
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Seriously, if you are going to review just say, "We would love to have had the pleasure of XXXXXX company but unfortunately he was not able to participate in the stay and I can't offer an opinion of him as a guest!" Don't click any stars and see if the system will accept your review!
Cheers......Rob