@Sergio
Hi Sergio
Do you have a guest to take their place? if you do, I can understand your philanthropy, presumably your guest understood the terms and conditions they booked under.
If I had someone else to take their place I'd "REACH OUT" to them and offer them a refund (Airbnb take their fee good, bad, or indifferently) but otherwise I’d judge each case on its merits and obey the rules.
Regards
Cormac
The Explorer's Club Krakow.
P.S. Did they get your email and phone number?