Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Greetings!
This is Tin, sorry to hear that you can't access your account. Have you tried to reset your password already? If not, you can reset it from here:
https://account.live.com/ResetPassword.aspx
You can reach the MS Accounts & Billing Support by following the steps below:
Kindly open this link: https://support.microsoft.com/contactus/
Ensure that your MS Account has been signed in
Type "Chat with an agent" and hit Enter.
Please click the "Contact support"
Please select the "Products and services"
Please follow the prompts to connect with a live agent.
You may also choose the "Call me back" option if you prefer to receive a call.
Once you're connected to the Live Agent, please let them know about your issue so they could check your account and address your concern.
Thank you,
Tin