Unable to delete resource group

Question

I have been trying to delete a resource group for almost a year now, with no success, and it just keeps sitting there sapping away at our available funds. Back when I first tried, there were 10 different resources in the group, and deleting the resource group deleted 7 of those, and then threw an error without any real detail, saying it couldn't delete the resource group. There are now the following three resources shown in the Portal site.

1. Virtual Network
2. Virtual Machine scale set
3. Network security group

Every time I try to delete the resource group as a whole, it just fails. If I try to individually delete the resources, it won't let me. The NSG says it is being used by the VN. The VN says it is being used by one or more machines in the VMSS. The VMSS won't let me delete it because it says it has already been marked for deletion. The machines within the VMSS also won't let me delete them because the VMSS has been marked for deletion.

I have tried deleting resources both through the Portal interface, as well as through the resources.azure.com site. I'm not sure where else to go, or what else to do. Any help would be greatly appreciated.

Answer 1

I was able to open a ticket with the support team. After the issue was escalated a few times, I got the response below back. Maybe this will mean something to someone. Either way, after I got this response, I was able to go in and delete the resource group, and it actually removed it from my account.

Issue: Tenant is leaked in PPM , causing NRP to believe that the service is deleted but the SVI Manager(RNM) had not recieved delete call. This leads to subsequent getPendingDeleteResources call to fail causing the deletion to perpetually get stuck.
Mitigation: Added PPM entry and deleted the service. Customer can try to delete the RG again.