Tell the developer
This goes straight to the person making the game. Faults, things that feel wrong, and ideas are all equally welcome.
If you are reporting something that went wrong in a game, the form in the game itself is much more useful — open the menu in the top right and choose Tell the developer. It attaches the turn, the screen you were on and which slot the game is saved in, which is usually the difference between a fault that can be found and one that cannot.
We use what you send to fix and improve the game. If you give an email address it is used to reply to you and nothing else — see the privacy policy.