In case of sale on an increased bid made at the time of confirmation to a purchaser not procured by the agent holding the contract, the court shall allow a commission on the full amount for which the sale is confirmed, one-half ( ½ ) of said commission on the original bid to be paid to the agent whose bid was returned to the court for confirmation and the balance of the commission on the purchase price to the agent, if any, who procured the purchaser to whom the sale was confirmed.