This is a new one.
So, a while back I bought an "all episodes" bundle for the adventure game Pendula Swing.
The bundle is clearly listed as including the first season of episodes (7), some episodes already available, the rest coming in the future.
To quote the developer:
"Pendula Swing Season One - All Episodes Bundle grants you unrestricted access to the entire Pendula Swing Season One, which will consist of a total of 7 episodes. You get automatic access to everything we release, as soon as we release it. Currently, Pendula Swing Episode 1 and 2 are ready for you, and we will release the remaining episodes every few months until Q3, 2019!"
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store.steampowered.com
A couple of days ago, episode 5 was released (the first new one since I bought the bundle), and I don't have it.
Searching around their forums, I read a message saying all that bundle gets you is a 30% discount on future episodes:
This game looks good! When the full season pack is released for sale, please message me about it in this thread here. Thanks! ːstariteː
steamcommunity.com
Really not cool.

I mean, the bundle is clearly listed as offering something it's not, and a purchase of "x" amount, will now cost double that, or more, if I want to get the complete game.