icanexpress.com Mobile Site: amexmobile.com Customer Care & Billing Inquiries P.O. BOX 981535 EL PASO, "IX 79998-1535 Payments P.O. BOX 1270 NEWARK PO 07101-1270 Pay Your Bill with AutoPay . Avoid late fees . Save time Deduct your payment from your bank account automatically each month Visit