It sounds like you are being billed for a service related to Microsoft Entra ID Free, which is a subscription that requires a credit card for verification, even though it is free and should not incur charges. If you have closed your tenant but are still receiving invoices, it may be due to residual charges or services that were not fully canceled.
To resolve this issue, you can try the following steps:
- Access Your Account: If you have lost access to the account, you may need to recover it to manage your subscriptions. You can use the Microsoft account recovery options available on their website.
- Contact Support: Since you mentioned you have no access, contacting Microsoft support may be the best option. They can assist you in canceling any remaining subscriptions and stopping the invoices. You can create a support request through the Azure portal or Microsoft 365 admin center.
- Check for Active Subscriptions: If you regain access, check your billing subscriptions under All Billing Subscriptions in the Microsoft Entra admin center or Azure portal to see if there are any active subscriptions that need to be canceled.
If you continue to have issues, reaching out to Microsoft support will provide you with the necessary assistance to resolve the billing problem.
References: