Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
For your privacy and security, I have covered the personal information included in your post. Please avoid sharing any personal or sensitive information publicly, such as serial numbers, order details, email addresses, phone numbers, or case-related information.
I understand how concerning it is to see a £155.52 charge that you do not recognize, especially after you have already spent several hours trying to resolve it.
Since you mentioned that your daughter shares a Microsoft 365 subscription with you, the charge may be connected to another account in the family group. However, only Microsoft Billing Support can securely review the transaction reference and determine which account or purchase generated the charge.
Please use Microsoft’s official unexpected-charge investigation page and select Investigate under Manage your payments. If the transaction still cannot be identified, go to Contact Microsoft Support, enter“unrecognized Microsoft charge”, select Get Help, and then choose Contact Support when the option appears. Microsoft specifically recommends contacting the bank or card provider if the payment information may have been compromised, so the card can be protected from further charges.
Please note that this is a user-to-user support forum. Moderators and community contributors, including external Microsoft employees, cannot access billing records, trace a bank transaction, issue a refund, or investigate Microsoft’s back-end payment systems. My role here is limited to sharing the appropriate guidance and directing you to the support team authorized to review this charge.
I realize this may not be the immediate resolution you were hoping for, but contacting Microsoft Billing Support and your bank is the safest way to have the charge formally investigated and prevent any further unauthorized payments. Thank you so much for your understanding.
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