Unable to Create a Service Bus

This is commonly caused by Azure for Students policy restrictions on allowed deployment regions, not by Service Bus itself.

Try this:

1. In Azure portal, open Policy > Assignments.
2. Find the assignment named Allowed resource deployment regions or Allowed locations.
3. Open the assignment and check the Parameter value for the list of regions allowed for that subscription.
4. Create the Service Bus namespace again, but choose one of those allowed regions.

When creating the namespace in the portal:

1. Go to All services > Integration > Service Bus > Create.
2. On Create namespace:
   • Select the correct Subscription.
   • Select or create a Resource group.
   • Enter a Namespace name that:
     • is unique across Azure
     • is 6 to 50 characters
     • uses only letters, numbers, and hyphens (-)
     • starts with a letter
     • ends with a letter or number
     • does not end with -sb or -mgmt
   • Choose an allowed Location from the policy assignment.
   • Select a pricing tier.

If the namespace creation returns a message that the namespace does not exist, verify:

• the correct Azure subscription is selected
• the namespace name is spelled correctly
• the namespace actually exists in that subscription

If deployment is still blocked after selecting an allowed region, the subscription policy is preventing that resource deployment and a support request is required.

References:

• Quickstart: Send and receive messages from an Azure Service Bus queue (.NET)
• Service Bus Resource Manager exceptions
• Unable to use Azure Student Account - Microsoft Q&A
• Disallowed by azure error coming up either i try to creaate vm or container or webapp - Microsoft Q&A