Accessing Microsoft Teams for Education using school or organizational credentials
Hello,
Microsoft does not directly manage organization users. Instead, each organization's IT administrator is responsible for managing its users according to its internal protocols.
You should contact your organization's IT support team again. Looks like they just reset your password but didn't unlock your account.
The waiting-24-hour method and recovery form method are for personal account users who are not part of an organization, so they don't apply to you.