Typically on the sales order if Intersight licenses were added it should prompt the seller to assign the customer smart account before allowing them to proceed with the order. From there they would choose your smart account and virtual account or in the case of partners they can assign it to a temporary holding account.
The licenses should get provisioned into the smart account specified on the requested start date from the sales order.
Sometimes the licenses end up in the 'default' virtual account and you just need to transfer those licenses to the correct virtual account that you had linked Intersight to (https://video.cisco.com/detail/videos/latest-videos/video/6327059978112?autoStart=true)
If you have an enterprise agreement (EA) there would be a different method of provisioning the licenses on-demand as needed using the EA Portal