How to completly disable Azure Bastion and stop getting charged for not using

I manually deleted the Azure Bastion in my subscription. A couple of days after, I noticed that the charges for Bastion services (Azure Bastion) remain increasing.
I did research, and I found this post.
I run the "List" command in Azure cloud shell: "az network bastion list" . As a result, I got all the information related to my Azure Bastion.
Then I run the Delete command: az network bastion delete --name MyBastionHost --resource-group MyResourceGroup ; I got the message "command is in preview and under development," but I let it run. It took around 5 minutes to complete. After that, I run the "List" command again, and this time, it shows no information at all, which means it was deleted. I am going to keep an eye on the charges under Cost Analysis.

It took about 3 minutes and this was the result.

az : The term 'az' is not recognized as the name of a cmdlet, function, script 
file, or operable program. Check the spelling of the name, or if a path was 
included, verify that the path is correct and try again.
At C:\Packages\Plugins\Microsoft.CPlat.Core.RunCommandWindows\1.1.9\Downloads\s
cript2.ps1:1 char:2
+  az network bastion delete --name MyBastionHost --resource-group MyRe ...
+  ~~
    + CategoryInfo          : ObjectNotFound: (az:String) [], CommandNotFoundE 
   xception
    + FullyQualifiedErrorId : CommandNotFoundException

I have tried: az network bastion delete --resource-group RandomResources-rg --name MyBastionHost
Still I have Azure resource which is Type Bastion
If I run: az network bastion list --resource-group RandomResources-rg
I get:
[
"id": "/subscriptions//resourceGroups/RandomResources-rg/providers/Microsoft.Network/bastionHosts/RandomResources-rg-vnet-bastion",
"ipConfigurations": [
{
"etag": "W/\"4b45cd72-3488-408a-8ca7-27364108ef95\"",
"id": "/subscriptions//resourceGroups/RandomResources-rg/providers/Microsoft.Network/bastionHosts/RandomResources-rg-vnet-bastion/bastionHostIpConfigurations/IpConf",
"name": "IpConf",
"privateIpAllocationMethod": "Dynamic",
"provisioningState": "Succeeded",
"publicIpAddress": {
"id": "/subscriptions//resourceGroups/RandomResources-rg/providers/Microsoft.Network/publicIPAddresses/RandomResources-rg-vnet-ip",
"resourceGroup": "RandomResources-rg"
},
"resourceGroup": "RandomResources-rg",
"subnet": {
"id": "/subscriptions//resourceGroups/RandomResources-rg/providers/Microsoft.Network/virtualNetworks/RandomResources-rg-vnet/subnets/AzureBastionSubnet",
"resourceGroup": "RandomResources-rg"
},
"type": "Microsoft.Network/bastionHosts/bastionHostIpConfigurations"
}
],

So there are still 3 resources left:
Bastion - RandomResources-rg-vnet-bastion
VNET: RandomResources-rg-vnet
Public IP address: RandomResources-rg-vnet-ip

Yes several resources are related to the created bastion host. VM, NIC, Disk and Subnet. I found if I went to 'All Resources' then typed 'bast' to filter, I could then delete the NIC and Disk, followed by the VM and Subnet. Then all charges stopped.