If you conduct a bulk transfer process for a pay group to generate the submission file in the PAYE modernisation tab and then transfer that file to Revenue, you won't be able to retrieve the file if the PAYE Mod Submission Control report does not generate.
This is because the PAYE Mod Submission Control report is triggered when you generate and submit the file to Revenue.
As a workaround, you can perform a full submission again to obtain the control report. Please note that the support team cannot do this manually for you.