Windows Server 2019 license VM inheritance

Hi everyone,
I'm having trouble with a Hyper-V VM which needs to be activated as it will be used for production purposes. The problem is that the vm cannot inherit the Windows Server 2019 license from host, which is something that Microsoft allows. I've been using OVH services for the past 4 months, but before that we were in another cloud infrastructure provider who had a specific procedure to allow your VM to get the license. I have opened a ticket to OVH support, who provided two guides as a solution, but none of them worked. (