Hello @Emiel1 ,
I also stated in the post that this issue has occured to me before and have had it resolved without a problem.
I understand there was an alternative solution for this particular issue, but there shouldn't be an issue in the first place. Airbnb applied the pet fee feature to make it easier for the guest to process it in their booking, clarify the extra fee in both host, guest, and corporate financial books, and avoid using the resolution center in the first place. Years ago asked Airbnb to include this pet fee feature due to this reason and I am so glad they have added it. I just believe Airbnb should train more support ambassadors on this new feature to be more equipped to help guests on these accidental mishaps and simply the books.
I hope this clarifies the reason for why I feel so strongly about this topic.
Noelia Natera Ceino