An operator may, in respect of any event for which the operator conducts a totalisator or approved betting competition, either—
(a) before accepting bets in respect of the event, allocate an amount of money to be used to increase the money available for dividends, guaranteed pool amount or prizes in respect of the totalisator or approved betting competition; or
(b) after ceasing to accept bets in respect of the event, supplement the amount of money available for dividends, guaranteed pool amount or prizes in respect of the totalisator or approved betting competition so as to return a specified minimum dividend or prize.