In accordance with PointsBet's betting rules, if a selected runner in a Racing Five for $25 bet is scratched - and the bet has not already been graded as a loss due to a previous selection - the entire multi bet will be voided, and the stake will be refunded to the customer.
This is because 5for$25 is a 'same game multi' type product where all of the individual legs are heavily correlated to the $25 odds price.