#PSA: apparently #Audible is issuing refunds/credits for #NeilGaiman books.
Please note: I don't have and have never had an Audible subscription, so I can't provide you detailed instructions or receipts.
I am sharing what I've seen on social media, which is: you can contact Audible's customer service, and explain that you want refunds for any Gaiman audible audiobooks you may own, and that you know other people have received refunds for same.
Try it for yourself or not, up to you.