Student Team 3DExperience Access issues

Hello,
I'm the leader of a team that received a sponsorship package with Solidworks and 3DExperience. We've had this same sponsorship before and I remember there used to be an online form where we could submit an Excel sheet to add/remove a batch of students to the platform but I can't find this anymore...
We recently recruited new members and we need to give them access to our shared folder/dashboard.
How can I add new members to my dashboard? Their names do not appear in the list of people I can add.

Thanks in advance.