If suspicious betting is detected then the winnings of the specific accounts in question are frozen until such time as BetFair have had the chance to investigate and determine one way or the other. That has no effect on BetFair’-s ability to settle the market for every other customer. If one trader has placed a bet on a match in good faith, that trader’-s bet wins, and there’-s a subsequent investigation, there is no reason whatsoever to disadvantage that trader by withholding settlement, particularly as a full investigation could take weeks.
That applied for the Hernandez v Brezezicki match.