Edit: I have sent an email to itch.io support, hoping to have this issue resolved
I posted a similar question on Sad Crab's game page. It doesn't add up math wise. The bundle claims that we get a value of 45$ which does fit with Innocent Witches costing 25$, Knightly Passions + DLC costing 10$ and Pirates: Golden Tits costing 10$ for the latest versions.
Either there is a bug in this web page that prevents it from registering the purchase properly, or the blog post gives false information, making this a scam, which I hope isn't the case