your credit report. Payment Instructions: You can make payments on-line via Citibankonline.com. by phone call 888.248.4465. at any Citibank branch. Citicard Banking Center. or by mad. If paying by mail. you must 'dude yaw account number and send your payment to: Citibank, NA, PO Box 688922, Des Moines, IA 50368-89Z2 O