All the payment and invoice related queries are handled by the Accounts Payable team.
I will request you to get in touch with the Accounts Payable team on the details mentioned below and I am sure that the team will be very happy to assist you with your query:
AP Customer Service (for invoice and payment queries only)
Email: apoperations@xyleminc.com
Telephone number: (Toll Free) 855-278-2248, option 1 followed by option 3 for AP queries.
Hours of Operations: 8:00 a.m. to 5:00 p.m. (Eastern)