193. The costs of and occasioned by the taxation shall be paid by such of the parties as the Registrar shall, at the time of the taxation, direct; provided that where the application for taxation is made by the party entitled to the costs of the action, the Registrar shall not allow him his costs of taxation unless such party has, previous to the application for taxation, served on the party by whom the costs are to be paid a copy of the bill of costs and demanded payment of the same.