I bought the License Tier 2. I would like to upgrade to Tier 3, but have a question for a use case. If I have a course/school, may I create the users' accounts like student1@myschool.com, student2@myschool.com, etc? My students will change in a few months, but the accounts would still be the same under my course/school emails adresses. Is this a fair use case in this Moovly deal?