Hello Elaine,
Thanks for reaching out here in Microsoft Q&A.
I understand how concerning it can be to see an unexpected charge on your credit card.
The £84.99 charge may be related to a Microsoft 365 subscription or a Microsoft Defender for Home plan, especially if it was set to renew automatically.
You can investigate your billing by using our tool in this link How to investigate a billing charge from Microsoft
If you want to talk with a support agent directly:
- Go to Contact Us - Microsoft and sign in your account.
- Type Cancel recurring billing in the search box.
- Click Get help and Select Contact Support.
- Choose Microsoft 365 and Office as Products and Services; and Billing and payment updates as Category
- Click Confirm.
- You can choose to chat with a support representative.
Note: The chat support team only works during certain working hours. Therefore, if the last window indicates that you are unavailable, try opening it again the next day. If you prefer phone support, you can leave a phone number. That way, they can call you and help you.
Please let me know if you need further assistance.
Best regards,
Alex | Microsoft Q&A Specialist
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