Employee Supplier Payment Address

In R12 both the employee work and office address default from HR (full HR installed). I created an employee supplier and checked the Home and Office sites.  2 invoices were then created, one with site home and the other with site office. When these invoices were paid, we noticed that the address on the remittance for both checks was the home address. We expected one of the checks to have an office address. Why wasn't the office address being picked up? HR setups appear to be correct.

We have a business requirement that some employee checks get sent home and the others to their office. Are there additional setups required?