Hosts have begged for a pet fee field for years. without it you cannot use Instant Reservation. You have to email that there is a pet fee and how much and if they agree to it, they will have to either send it via paypal AFTER they agree to it or whatever method you choose.
It's infuriating, clumsy, and time-consuming to have to do this. Hosts have begged airbnb for years for this feature to no avail.
The cleaning fee field offers no options for guests who stay a weekend vs. a week or month or longer. This is ridiculous and serious oversight.