Hello,
Please feel free to create support request with Azure Billing team.
Document reference to create support request : https://learn.microsoft.com/en-us/azure/azure-portal/supportability/how-to-create-azure-support-request
While creating the ticket, please ensure to choose the Support Type as Billing and proceed further with closest category and share relevant details. You will be contacted by support engineer to assist you further.
Kind Regards,
Divya.