Azure for Students free VM SKUs unavailable in all usable regions

I have an active Azure for Students subscription that includes free VM usage for eligible B-series VM sizes. However, I am unable to deploy the eligible VM sizes due to capacity restrictions.

My subscription has the system policy “Allowed resource deployment regions” (sys.regionrestriction), which limits deployments to:

westus, canadacentral, swedencentral, mexicocentral, and denmarkeast.

I attempted to deploy a small Debian VM using the free-eligible sizes Standard_B1s and Standard_B2ats_v2.

In Canada Central, both Standard_B1s and Standard_B2ats_v2 fail during deployment with:

SkuNotAvailable – Following SKUs have failed for Capacity Restrictions

I then recreated the virtual network in West US and attempted Standard_B1s. That deployment fails with the same SkuNotAvailable capacity restriction.

az vm list-skus reports these VM sizes as valid/available in the regions, but the actual VM deployment preflight rejects them because of capacity restrictions.

This creates a situation where my Azure for Students subscription includes free VM hours, but the eligible free VM SKUs cannot currently be deployed in the regions that my subscription policy permits.

Could you please either:

1. Enable capacity for one of the Azure for Students free-eligible VM SKUs in one of my allowed regions, or
2. Add another region to my subscription's allowed deployment regions where these VM sizes are currently available?

I am only trying to deploy a single small Linux VM. The problem appears to be Azure capacity/subscription restrictions rather than my VM configuration.