I booked a VRBO cabin in Alaska through Expedia a couple months ago for next spring, and given the road washout in Denali along with the ongoing border restrictions (we'll be arriving via a cruise from Vancouver), we've decided to cancel the trip. I canceled the booking through that infernal Expedia Virtual Agent thing, and it said the "Cancellation request has been sent." Looking at VRBO, I see their instructions for canceling include the following:

" ...
5. Review the property's cancellation policy.
6. Select Cancel booking.
​​​7. If Cancel booking isn't available, select Request cancellation."

My booking's cancellation policy is that I can cancel for a full refund until May 8 (2022). So why would "Cancel booking" not have been an option, and I apparently instead have to "request cancellation" and have the host approve it? (It's been 4 days with no response, so I sent a follow up a few hours ago.) What if the host doesn't approve the cancellation, even though I'm well within the full refund window? Am I just SOL?