The solution is quite simple - the umbrella's payslip print method must be Electronic.
Although, the workers that belong to the umbrella have electronic as their payslip print method; they are not actually receiving the remittance, it is the umbrella that will be receiving their payment for the work they have done.
To change an Umbrellas payslip print method, follow these steps:
Click Workers and then click Payroll Details.
Click Payroll Details Maintenance and then type in the reference of the umbrella company in the Workerbox.
Press Tab to populate the section below with umbrella's details.
Select Electronic from Drop down list for Payslip Print Method.
Review, and if satisfied, click exit.
This should now print all remittances relating to this umbrella electronically.