Office 356 support

We initiated a case with the Office 365 team for creating a retention policy, but unfortunately, it resulted in deleting emails from users' inboxes. Despite the critical nature of the issue, our attempts to escalate it through a support ticket have been met with a lack of seriousness and responsiveness from the support team. Despite multiple requests, there has been no managerial intervention, no change in severity level, and the engineer assigned to the case has been unable to access the necessary logs to diagnose the problem. It has now been three days since emails started being deleted from users' inboxes, and despite our efforts to explain the urgency of the situation, it is not being addressed appropriately. Considering that contacting the support number has proven futile as they do not answer calls, our next option may involve reaching out to higher-level management within the support organization or exploring alternative support channels.