We’ve listed the hours provided for the Michael Kors customer service departments. 1  Online Order Customer Service: 1-800-908-1157. 2  Handbags: 1-866-709-5677 – 9 AM to 5 PM Monday to Friday ET. 3  Footwear: 1-866-709-5677 – 9 AM to 5 PM Monday to Friday ET.