Hi Linda GZV G ,
Thanks for visiting Microsoft Community.
I understand that you are currently facing an issue with unexpected charges that need to be resolved. Due to community privacy policy restrictions, I am unable to directly access your account. However, I will guide you on how to contact our online support team, who will assist you with such issues. Please follow these steps:
Click on this link Contact - Microsoft Support and search for "Contact Microsoft Support."
Click on "Contact Support."

Select the product and issue type.

Finally, choose "Chat with a support agent via web browser."

I hope your issue gets resolved promptly.
Best Regards,
Jonathan Z - MSFT | Microsoft Community Support Specialist