Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
First, I'd like to clarify that we're not Microsoft support, this is a user-to-user support forum. Moderators have no backend access and cannot directly intervene in Microsoft products. We provide only technical guidance and best-practice recommendations based on reported issues.
For your request, there are two official ways you can contact Microsoft support team:
1/ By phone: Customer service phone numbers - Microsoft Support
2/ By creating a support ticket via Admin Center.
Additionally, you mentioned some staff are still able to access to the account. How were the accounts first created?
I look forward for your reply.
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