To reach Microsoft 365 billing support, please refer to the global phone numbers list for the most current support phone number in your country or region. If your country or region isn't listed, you can select a neighboring country or dial the United States support phone number. Note that billing support is typically available in English from 9 AM to 5 PM, Monday through Friday, and local language support may vary by region.
Make sure you have your account details ready when you call, and be aware that there is a PIN-based verification step for added security when contacting support.
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