ACH Recall and Reversal Processing for 2 payments; reverse incorrect TRU only

Hello!

An employee received a supplemental earnings twice, one was in a wrong Tax Reporting Unit (TRU). Due to the payment being processed separately, we are unable to void the wrong payment in the wrong TRU.
Payroll for that period has been closed.
We are trying to use Oracle functionality to reverse this. We were hoping to use the following flow: Reverse Payroll Calculation
However, it looks like this will reverse both payments, but we only want to reverse the incorrect TRU. This happens because employee has 1 payroll relationship for both TRUs.
How can we reverse just the incorrect TRU payment?