The combo cheat steps are: HERE
“I think congratulations are in order!
You’ve won every coin in the stadium’s reservers!
We’re expecting another coin delivery tomorrow
So come back soon!”
Some of you may get this message after a few times of using the betting cheat. Don't worry, I believe you can continue using the cheat again 24hours later. This is just a measure Playfish has taken to prevent us from cheating.
Oh and PLAYFISH have been bought over by EA. Read here