@Geoffrey143 I'm also confused, but it sounds like you employed a co-host who you feel was responsible for theft and cleaning issues caused by guests. If this is the case, the dispute is entirely between you and your ex-employee, and there's no reason Airbnb should intervene in it.
Cancelling the upcoming bookings was not a good idea. The record of those cancellations (one of which was only 3 days before the guests' arrival) is shown prominently in the reviews of your listing, and as a result, the thoughtful and experienced guests you hoped to attract will no longer trust you with their bookings. You've probably also ruined a few people's holiday plans for no good reason - adding more to the ever-growing pile of potential new members that will never consider an Airbnb again after being treated this poorly.
It's really not a workable solution to cancel bookings from unreviewed guests, but if you genuinely can't come up with a better way to vet your requests, the least you can do is be explicit in your listing that you're not accepting first-time Airbnb users.
Cancelling bookings can get you kicked off the platform, and so can asking for "refundable" payments off-site, so neither is a strategy I'd recommend if you want to be listed here.
