I been having the impression there is a problem with coin totals.
Now I think I have seen evidence. I ended a turn with 1 existing base and 1 base just ending the capture process (3rd turn). My credits showed 200 after clicking end turn. Which should be correct I assume.
But I left the game, returned and my coin total was down to 100.
Just tested this in another game. When you end turn the client counts the newly captured bases. But the server does not. So on game reload you have a discrepancy