@Simon2698 Here's what happens if you choose the option to request agreement from the host to cancel- it is registered by Airbnb as a host, not a guest cancellation, if the host agrees. The the host is hit with penalties- those dates remain blocked so they can't rebook them, they get a $50 fine, they lose Superhost status if they have that, and they get "host cancelled this reservation XX days before check-in o their review page, which of course makes future guests wary of booking with them. So of course, hosts will always decline the "ask your host ".
Now maybe this isn't clear on the guest end, that there's the option to ask the host or to just go ahead and cancel yourself. When you cancel yourself, you'll right away see confirmation that the reservation has been cancelled.
If you did just cancel yourself, then I don't know why this would have happened, but it's AirBnb you'll need to keep dealing with, in any case, not the host.
Hosts don't even get paid until 24 hours hours after a guest checks in- at this point, Airbnb has your money, not the host.