Is there no way to get better support for Azure - esp for SEV A tickets

Sorry you are dealing with that. For a real Sev A / production-down situation, I would make the escalation request very concrete and keep it tied to measurable business impact.

What usually helps is to add a short impact block to the case: affected subscriptions/resources, affected regions, current financial or customer impact, exact start time, mitigation attempts, and the decision you need from Microsoft. Then ask the support engineer to engage the duty manager/escalation manager and request a live bridge or direct backend-team update if the case is being passed between teams.

I would also keep a clean timeline in the ticket: promises made, timestamps, test results, and current symptoms. It gives the escalation team something objective to work from and makes it easier to push beyond generic status updates.