That limited time banner I keep seeing is for the sale? Well I try it out now.
Also why does saying no to not having the code open up a site in your browser? I don't like that.
There are codes for bonus scenes and a gallery code that are only available to our Patrons.
I suppose this is the post you've mentioned. https://www.patreon.com/posts/bonus-scene-32519916
You can unlock it by becoming a Patron.