@Anita525 i think maybe the host realised the calendar was open far ahead of the price she had set. I think u are upset because u saw the price was were below the others accommodation and u wanted to score a deal.
I just cancelled myself 15min ago a booking for December 31 to January 4th on another site, as all my dates where blocked as I only open my calendar 2/3months ahead, and not sure how this mistake happened the calendar was open only Dec 28 to 4th, when I saw the guests booking with very low price I immediately cancelled as my rates for the high seasons where not set yet.
Many hosts make mistake as calendar opened up sometime and only after a request u realised the price do not reflect the seasons or the big event in town.
As u know many ABB host are not professional hotelier, so a mistake like that happen.
If u are not happy with her deal move to another listing