RDP Licenses Problem

Dear Experts,

I have RDP Licenses from my MCT Subscription. which I use for my students in my LABs.

I got per user and per device CALs there.

But problem is that I have used all the licenses in my LABs which are removed from my HDD now.

I have no way to revoke those licenses from those VMs now.

Could anybody help me to resolve this issue. Because I have to conduct class in next week for my students.

Any help will be highly appreciated.

Thanks & Regards.

Ali.