Who to contact Customer ServicePhone: 262-696-6150, Option 3Toll Free: 1-888-TRI-0024, Option 3FAX: 262-696-6155Submit orders to:orders@tri-phase.comQuestions regarding your order:customercare@tri-phase.com RMA DepartmentPhone: 262-696-6150, Option 2Toll Free: 1-888-TRI-0024, Option 2FAX: 262-696-6155Submit RMA requests to:rma@tri-phase.com Download the RMA Request Form Customer CreditSubmit credit requests to: accounting@tri-phase.comDownload the Credit Approval Form Contact Us