Unfortunately I have nothing good to say about the host.
I had a family (my mother) health situation and asked to change dates which was not accepted, even after airbnb intervened.
I chose the non-refundable option and NEVER asked for a refund, just a change of dates but they were completely insensitive, no humanity whatsoever.
I read the cancellation policy and didn't find any mention to NO CHANGES.
With the help of good friends I did go to Sevilla.
At check out day I got a message from the host asking for a 5 star review for it would be very helpful. Well it would have been VERY HELPFUL to ME if they had agreed on changing dates.