@Ron It looks like you're already subscribed, Ron. Thanks! :) Hopefully you have already seen the preview; maybe it ended up in your Spam folder? The subject of the email is: "ICYMI: Return Preview (Post Haste, Thursday 30th September 2021)"

Either way that wasn't a good message to get. Instead it should have informed you that you were already subscribed. I'll let Justin (the developer of Buttondown) know about that since I don't think he'd be happy at all to see that happening.