You can delete the Virtual PBX by yourself from your personal account in "Virtual PBX", by clicking on the "Delete" button next to the Virtual PBX you want to delete.
In the "Comment" field specify the reason for deletion and additional comments*.

*We can delete your virtual PBX on the same day, on the planned date, or when your subscription is expiring, i.e. 1 day before the next payment date.