If the guest did not step foot on your listing, you can have the review removed, @Gelila0. The reason a cancelled guest's review is allowed is to warn others of the terrible things they found when they arrived. Cancelled no-shows are in the grey area of being invited to review, but by rights not allowed to since the review is not of their experience in the listing.
I had a cancelled unrefunded no-show this summer who was fighting mad and keen to rant in a review. I phoned Airbnb, and since it was clearly not her experience, the review was removed.
You can do the same. Make sure to pull up the Help Centre policy around reviews so you have it in front of you when you call. Quoting it will help.
If for some reason your request is denied, as things may have changed in admin since the summer, you can respond to the review publicly on your page. Make sure it is very brief and professional. "This guest did not show up or let us know, but did wish a review after the fact. Her review does not reflect her experience." Something like that. I do hope you get it removed, though. Will you let us know?