very nice question asked. its a common problem maybe faced by all the sponsors.first of all make your PSA understand what is a standing order and how many ways to place the standing order. what are the benefits of standing order.then show your won examples how you are benefited with standing order. at the same time show others examples too with that. in this way my sponsor convinced me to place an standing order from then am doing that and convinced my PSA for placing that. thanx