Hi Damon,
You will need to have your reseller replace the incorrect Standard licenses with Datacenter licenses, as Microsoft does not allow upgrading Standard to Datacenter through licensing alone. Once you obtain valid Datacenter keys, you can run DISM /online /Set-Edition:ServerDatacenter /ProductKey:XXXXX-XXXXX-XXXXX-XXXXX-XXXXX to convert your current evaluation installations without reinstalling. Keep purchase orders or correspondence showing that Datacenter was requested, as this will support your case with the reseller or Microsoft. During the transition, you remain compliant if you are actively resolving the issue, but you should finalize the correction quickly to avoid audit risk. Only Datacenter licensing provides unlimited virtualization and full cluster rights, so Standard cannot meet your environment’s requirements.
Harry.