Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Hello, good day and thanks for your question. If you are referring to transferring the Microsoft 365 license from one account to another, you cannot transfer an existing Microsoft 365 subscription from one Microsoft account to another. Please see the below link as a reference.
As you have an existing subscription, you will need to cancel it first and then you can go to https://account.microsoft.com/services/microsoft365/billing and try it from there or try to turn off the recurring billing at https://go.microsoft.com/fwlink/?linkid=2277073 and you can also follow the guided steps indicated from the link below.
Kindly take note that the forum does not have access to user accounts to be able to check and intervene with account related and billing side of things and 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 getting a refund.