To make sure that additions to basic pay and payroll claims export to Payroll you will need to take a look at the pay element's settings and tick the Allow in Payroll box.
Go to Setup and click Settings.
Click Module Settings, then Payroll Settings.
Click Pay Element.
Search for the pay element that has been used when adding the addition or claim and click it.
Tick the Allow in Payroll box.
Click Save.
All future claims and additions using this pay element will be exported to Payroll going forwards, but this will not affect previously submitted ones.
Please contact your Payroll Agent as they might need to run another export.