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@Brent224
I suggest You let Your guest book 1 night at a price of 10 USD, I believe this is the minimum nighly price on airbnb.
Your guest pays, and after check-out of this reservation You will get an invitation to review said guest (again). You can then leave the guest the review You originally wanted to give him. Then You can explain that the review You gave him before was a mistake You made and You can explain that it was impossible to get Your mistake corrected due to endless hold-time on airbnb CS. Let's see what airbnb then does.
After that, You refund Your guest said 10 USD or more through the airbnb resolution center.
Maybe Your guest will leave You another positive review for Your effort. That's not a problem, even though Your guest didn't stay at Your place. Because admin Kristie stated on July 12, 2018 that a guest
https://community.withairbnb.com/t5/Hosting/To-Clara-Liang-Product-Director-Last-min-cancellation-be...