You can try Microsoft Q/A. There are official Microsoft staff and support there who would be able to reach out to internal team after initial investigation and it's free. I have been seem fair a few issues there being raised and forwarded in the past. Their response time is pretty fast too if your question is well elaborated.

https://learn.microsoft.com/en-us/answers/questions/

If you have Azure support, raise a ticket from Azure portal is also very effective.