License & Subscription Issues

How to Contact Microsoft About an Unauthorized $800 Charge

Anum MushtaqAnum Mushtaq Oct 20, 2026 868 views

Question details

The user experienced a large, unrecognized $800 charge from Microsoft and needs to know how to dispute it and contact billing support.

How to Contact Microsoft About an Unauthorized Account Charge
Product
Microsoft 365 / Microsoft Account
Device & OS
not provided
Scenario
Reviewing bank or credit card statements and finding a fraudulent or unauthorized Microsoft charge.
Observed behavior
An $800 debit appeared on the financial account without the user's authorization or recognition.
Before you start

Gather your transaction date, exact amount, and any reference numbers from your bank statement, but never share your password or full credit card details with anyone.

Solution 1Recommended

Submit an Online Billing Support Request

The most efficient way to dispute a charge is by contacting Microsoft support directly through their official help portal.

Submitting an online ticket ensures your request is routed directly to the billing department with all necessary account information automatically attached.

1
Access the Support Page

Navigate to the official Microsoft support contact page in your web browser.

2
Sign In to Your Account

Log in using the Microsoft account associated with the unrecognized charge.

3
Submit Your Request

Select your product, choose 'Billing' as the issue, and provide your transaction details (date, amount, order number) to initiate a dispute.

Admin Center Option: Microsoft 365 administrators can also sign in to the Microsoft 365 admin center and navigate to Support > New service request.
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Frequently Asked Questions

How long does it take for Microsoft to refund an unauthorized charge?

Refunds typically process within 3 to 5 business days after the support team approves the billing dispute, though it may take longer depending on your bank's processing times.

Can I check my Microsoft purchase history online?

Yes, log into your Microsoft account dashboard and navigate to the 'Payment & billing' section, then click 'Order history' to view all recent charges and invoices.

What if I don't have a Microsoft account but still got charged?

If your card was used without your consent and you do not have a Microsoft account, immediately contact your bank or credit card provider to report the fraud, block the transaction, and request a new card.