I want to show an example of how willhill cheating their customers. My account was about three years. I did sports betting is rare. (maximum 2 bet every week, the size of 100-200 dollars). I never checked the calculations for sports betting. But not so long ago, by chance I found this(See the attached image).
In the example, it was a basketball 8/16/2011. odds on France - 1.4, GB - near 2.8. It was not live.
France win: 1.4*100$ = 120$(20$ was stolen).
In the live chat I was told that there is no error, and recalculations will not. Soon willhill limiting my account to 0.00 $ max stake.
This is not an isolated case. If you play willhill, then be careful and check your bets.