RM3212 | Manually issued payable order: Typing payable orders
From HM Revenue & Customs · Repayment Claims Manual
When the RSO gives you files containing repayments
ask the Management Inspector for the number of payable orders you need
sign the record of payable order serial numbers issued
type the orders in duplicate. The card R250 tells you how to do this
write the serial number of the payable order and the date on the R23
return the typed payable orders with the files to the Management Inspector.