An integrated threat protection solution designed to detect, investigate, and respond to cyber threats across Microsoft 365 services.
Hello, good day and thanks for your question. I understand that you have encountered an issue pertaining to an old account that has an associated Microsoft product or service on it.
To check and confirm, is this Office 2021, 2024 or Microsoft 365? If it is Office 2021 or 2024, are you trying to install it on a different device?
If it is for Microsoft 365, please take note that you cannot transfer an existing Microsoft 365 subscription from one Microsoft account to another.
If you are unable to cancel and it is still being billed, you can reach out to the support team at https://support.microsoft.com/en-us/contactus/ and then click on Microsoft 365 and then click Get Home Support and then type in Billing question and click the blue button that says Sign in to contact Support and login and proceed from there or you can also request a call back by going to https://go.microsoft.com/fwlink/?linkid=2168171 in case you are having trouble cancelling and it is best to also cancel the payment method on file to avoid future charges that is related to the subscription.