Many business only have online presence in FB and nowadays I think you can’t even check reviews or e.g. the lunch menu (perhaps depends on the A/B test part you fall in).
I left FB many years ago and no way I’m creating a dummy account for the same reason shown in the post (requires a phone).
So I just give up and can’t blame the business owner since the person probably went for the straight forward free choice and didn’t have to learn anything new but FB, I truly hate it nowadays.