@Mike-And-Jane0
That might not be the case. If @Eric4610 only wants to change the star rating, rather than the wording of the review, it might be possible. I had a guest who hit 4 stars instead of 5 by mistake and Airbnb were fine about her changing it, but that was a while ago.
What concerns me here is that we were told by Airbnb that a system had been put in place to detect 'outlier' reviews and prevent precisely this sort of situation, so why did this happen? The guest is supposed to get a prompt when they hit that 1 star, asking them if they are sure. @Eric4610 did you get any prompt like that while you were leaving the review?