@Dariah0 So sorry you had such a bad experience with such an awful host.
The problem, Dariah, is that Airbnb customer service has fallen off a cliff. It's been extremely frustrating to deal with them, regardless of whether you are a guest or a host with an issue.
All their CS front line reps are outsourced now, they get paid for closing cases as quickly as possible, they are ill-trained and seem to know next to nothing about Airbnb policy. Many aren't even all that fluent in English.
So this is what you, and everyone else is having to deal with now. Cases that should be no-brainers are taking weeks or months to get resolved.
I think it helps to know you aren't alone in getting this bad service, but of course you need this resolved.
If you are dealing with a rep who doesn't get it, as this one doesn't not even bothering to check the messages you sent to the host, ask that the rep please pass the case on to a supervisor. Stay polite- your goal is to get to someone who will help you appropriately.
" XX, thank you for your reply- unfortunately, it is evident that you haven't read my messages to the host, which show clearly that I did tell the host that I was bringing my dog. And the dog is far from the only issue here.
I request that you now please pass my case on to your supervisor who may be better equipped to deal with it. Thank you."
That sort of thing.
Also when you are dealing with Airbnb CS, present your issues as simply and concisely as possible, in bullet point form, in chronological order.
I requested to book this place on June X.
I accompanied my request with a message to the host stating I would be bringing my dog.( This is a pets allowed listing).
The host replied that was fine.
On arrival, I found that the place had not been cleaned and was unacceptably dirty.
No blankets were provided.
The host then insisted I pay him $300 in cash for the dog.
Etc, etc.
I have no idea of the specific details beyond what you've posted here, but that's an example of the way you should lay things out. Make it dead simple to read and understand.
If you are dealing with them by phone, switch to their Twitter account, or their messaging system. Phoning, unless it's an emergency, seems to be the worst method of dealing with them, and you have no written record of what the rep said to you. Screenshot all your communications, as well as your message thread with the host, in case they disappear it all.
I really don't know what more to suggest. Keep in mind the 3 "P"s of dealing with them. Patience, politeness, and persistence. The squeakly wheel does, usually, eventually get the grease.