Outlook has manual customer service. Call the manual customer service number when needed on weekdays, usually from 9 am to 9 pm on weekdays.
Outlook manual customer service telephone numbers: 800-820-3800, 400-820-3800, 021-960818. You can call any of the above three numbers.
When you need to make a complaint, you should submit some information about email registration and use. It is best to call customer service to communicate, and the success rate is higher.