Regarding Invoice After Free Trial Expiry

Hi Pruthvi Gopal,

Thanks for reaching out to Microsoft Q&A.

The best option here is to contact billing support team. Please ensure to include your subscription ID, admin account used to create the subscription and invoice received to confirm that the charges are incurred for azure usage.

Please use the below steps for assistance with the charges incurred:

Create support request from azure portal and specifically select billing issue: https://learn.microsoft.com/en-us/azure/azure-portal/supportability/how-to-create-azure-support-request#go-to-help--support-from-the-global-header

If you're unable to create support request, try to reach support via global customer support as below.

https://support.microsoft.com/en-us/topic/global-customer-service-phone-numbers-c0389ade-5640-e588-8b0e-28de8afeb3f2

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