Unfortunately for us, I'm afraid they didn't get our message here, and the message I sent them directly via their site didn't get a response either.
So I'm stuck without being able to play the rest of the game.....
The game has other bugs but the one related to saving is the most disabling and the most urgent to fix.
As I am not the only one in this situation, it is even more urgent to fix it because it prevents us from playing the game we bought....