I'm not fully sure how it works, but you should have a "download url" from your original donation which you can use to download the newest version. If you need to revert payments and can't do it yourself, please contact the itch.io customer support.
Oh, I don't care about getting my money back. Its was just amusing. We need more people making games about suits. But you seem to be the only one. So, keep my money. Good for you for working to get this far.