If your VRBO is operated by a super host or premier host, I would give a little more grace. We booked a flat in Rome about a week ago for 2024, and I messaged the host through the comments when giving our down payment. He is a premier host and just got back to me today, fully satisfying my question about the cost of him booking us private transportation from the airport. For me, because we are almost a year out, I gave plenty of grace. Lots of people cancel, especially if the cancellation policy is generous.
If your host does not have a lot of positive feedback, try calling VRBO's customer support line. For another apartment we're renting in Florence, I had them do some research on the host we're booking through (as to why they have so few reviews for their property yet are considered a "premier host"). You can also cross-check reviews on booking.com, expedia, and airbnb to see if the same property is listed with feedback. Obviously the property won't come up if you use the same dates and have already booked it elsewhere, but many renters list on multiple platforms.