The reality of a 400 credit matchplay bet is this......
Player A bets 400 credits and is charged 444 by WGT, 400 goes into the pot.
Player B bets 400 credits and is charged 444 by WGT, 400 goes into the pot.
So the pot has 800 credits and WGT has 88 at this point.
Play A wins the game and is paid 800 credits by WGT.
The net is that Player A gets 800 credits for the win and was charged 444.
Player B gets 0 and was charged 444.