Cluster terminated.Reason:Azure Unexpected Deployment Template Failure

I am trying to create a cluster and am getting an error:
Cluster terminated.Reason:Azure Unexpected Deployment Template Failure

Error code: UnexpectedDeploymentTemplateFailure, error message: Failing to launch instances for the cluster because of unexpected deployment failure.
Message: {"error":{"code":"MultipleErrorsOccurred","message":"Multiple error occurred: BadRequest,BadRequest. Please see details.","details":[{"code":"InvalidTemplateDeployment","message":"The template deployment failed with error: 'The resource with id: '/subscriptions/dd9f0fd1-2f56-4740-9bc6-774d64fb3d30/resourceGroups/databricks-rg-AzureDBWorkspace-htkg6435jmexi/providers/Microsoft.Compute/virtualMachines/a865f9a19deb444ea0fcad73cd69b962' failed validation with message: 'The requested size for resource '/subscriptions/dd9f0fd1-2f56-4740-9bc6-774d64fb3d30/resourceGroups/databricks-rg-AzureDBWorkspace-htkg6435jmexi/providers/Microsoft.Compute/virtualMachines/a865f9a19deb444ea0fcad73cd69b962' is currently not available in location 'eastus' zones '' for subscription 'dd9f0fd1-2f56-4740-9bc6-774d64fb3d30'. Please try another size or deploy to a different location or zones. See https://aka.ms/azureskunotavailable for details.'.'."},{"code":"InvalidTemplateDeployment","message":"The template deployment failed with error: 'The resource with id: '/subscriptions/dd9f0fd1-2f56-4740-9bc6-774d64fb3d30/resourceGroups/databricks-rg-AzureDBWorkspace-htkg6435jmexi/providers/Microsoft.Compute/virtualMachines/033492964ea9481aaaae3f91a581cae6' failed validation with message: 'The requested size for resource '/subscriptions/dd9f0fd1-2f56-4740-9bc6-774d64fb3d30/resourceGroups/databricks-rg-AzureDBWorkspace-htkg6435jmexi/providers/Microsoft.Compute/virtualMachines/033492964ea9481aaaae3f91a581cae6' is currently not available in location 'eastus' zones '' for subscription 'dd9f0fd1-2f56-4740-9bc6-774d64fb3d30'. Please try another size or deploy to a different location or zones. See https://aka.ms/azureskunotavailable for details.'.'."}]}}

When I try to raise a support request to enable the eastus zone for my subscription, it gives me this error:
Your free trial subscription isn't eligible for a quota increase. To request a quota increase, first upgrade to a Pay-As-You-Go subscription.

I just need this subscription for Databricks training, so I don't want to change the subscription. Can you please advise on how to proceed