Accounts Payable: Vendor Supplies/Services The intent of this page is to provide external vendors with contact information to DCF Accounts Payable. If you have a question regarding an invoice you have submitted to DCF, you can contact our agency. For questions relating ONLY to invoices for external vendor supplies and services. Note: Do NOT forward credit card, social security or other personal information. External Vendor Supplies/Services Contact DCF Finance DCF Accounts Payable For Child Support and Provider questions, please use the links below: Providers Contact Child Support The Wisconsin Child Support Program Child Care Providers Milwaukee County Other than Milwaukee County