How to obtain purchased license

I recently purchased the virtualhere kit https://modularkvmip.com/product/virtualhere-modular-kvm-ip-kit/ which I believe includes a license. What is the correct way to obtain that license? 

#2

Sure, you should have received an email with instructions. Anyway no problem you just visit https://www.virtualhere.com/purchase and put in your email address as the discount code, there will be no payment required and click Buy.