An integrated threat protection solution designed to detect, investigate, and respond to cyber threats across Microsoft 365 services.
Please note that here on Microsoft Q&A, we are fellow users helping each other. No one here has access to your account or billing information.
If you do not have access to the account that the subscription is linked to, Microsoft Support may also be unable to cancel the subscription on your behalf. Your best next step is to contact your IT administrator and ask for permission to temporarily access the account for the sole purpose of cancelling the subscription. Explain your situation so they can assist you.
If you are unable to access the account or your IT administrator cannot provide access, your last resort may be to contact your bank and ask them to block future charges from Microsoft.