Leave and sickness are separate in the Access Education People system and they are added from different menus.
In first instance, please check that this absence has been added correctly as leave, not sickness. Then, look up the absence category's settings in order to determine if it's been set up as leave or sickness.
Search for the employee and go to their profile.
Click Absence, then Leave.
Select the absence period from the Period dropdown.
Look for the absence in the list and click it.
The absence category is listed at the top, in the Absence Category field.
Keep in mind the name of the absence category and click Close.
Go to Setup and click Settings.
Click HR Module Settings, then HR.
Click Absence Class.
Search for the name of the absence category and click it.
If the option selected in the Type dropdown is Leave, this is already set up correctly and you don't need to make any changes.
If the option selected in the Type dropdown is Sickness, this is set up incorrectly and you will need to change it to Leave.
If the absence class is already correct on Access Education People, please let your Payroll Agent know that the issue is not caused by the HR system. This means the issue is caused by Payroll and they will be able to look into it for you.