Hi Luis Pacheco
Even after deleting a VM, certain resources like managed disks, public IPs, or network interfaces may still exist and incur charges. Since you've confirmed there are no orphaned disks or IPs, this might not be the issue, but it's worth double-checking for any remaining network interface or a load balancer linked to the VM. Additionally, if you have snapshots, backups, or managed disk snapshots enabled, those could still charge even after VM deletion.
Azure billing operates on a cycle and sometimes charges from previous usage continue to appear for a short period after deletion. If your VM was running before deletion, some charges might still be processing.
If you're using Startup/Sponsorship credits, be aware that some services might follow different billing rules. Additionally, certain reserved instances or licensing fees could still apply even after deletion.
Navigate to Billing Subscriptions for checking billing details -> Cost Management + Billing -> Select your subscription then review the Cost Analysis filtering by resource type and service.
In the Usage + Charges section, try to isolate the charge to a specific VM or resource to see if something is still running that you missed.
Additional References:
Meanwhile, could you please share the Case ID so I can check internally.
Hope this helps!
Please Let me know if you have any queries.