Hello دانه بنت منصور الزهراني
Apologize for the inconvenience that may have caused.
We understand your predicament. However, after reviewing the issue, understand that it is necessary to raise a support request with Microsoft to obtain the exact details of your subscription spendings. because we cannot provide the direct root cause here as the invoice indicates usage of the machine learning service.
So, to get the precise consumption details of your subscription, you need to raise a support request with the azure billing team.
If you can't find the option or unable to create a support request, please follow the below steps.
https://learn.microsoft.com/en-us/azure/azure-portal/supportability/how-to-create-azure-support-request.
Note: you can even raise a support request from other subscription as well, but make sure to provide the charged subscription's details in the support request.
Rest assured that Microsoft will assist you in providing the proper justification.
Please let me know if you required anything!
Thank you.