Hello @Keith Allen
Thank you for reaching out to Microsoft Q&A.
Contacting your Azure AD administrator likely someone with global administrator capabilities within your company is the first step. They will be able to manage user accounts, including guest accounts, with the required rights. If your account has been locked, the administrator can: Unlock it. Directly delete the guest account from the Azure AD tenant. An Azure AD administrator can utilize the portal to unlock a user's account if it is locked. https://learn.microsoft.com/en-us/microsoft-365/troubleshoot/access-management/account-blocked-error-when-sign-in
Here's how: Navigate to Users > All users in Azure Active Directory. Locate the user and choose them. If the account is locked, there will be a way to unlock it in the Account area.
The Azure AD PowerShell module can be used to delete the guest account if you would like or need to do so using PowerShell with global admin permissions.
Install-Module -Name AzureAD
Connect-AzureAD
$guestUser = Get-AzureADUser -Filter "UserPrincipalName eq 'guestuser@example.com'"
Remove-AzureADUser -ObjectId $guestUser.ObjectId
You can reach out to our support team. You can look into below article to get support numbers depending on your country.
or creating a ticket through a different account: https://learn.microsoft.com/en-us/microsoft-365/admin/get-help-support?view=o365-worldwide#phone-support
I hope this clarifies things. Please contact us if you have any additional questions.
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