A: Please check https://freedcamp.com/help_/tutorials/wiki/wiki_public/view/GJbab and contact us as shown here https://freedcamp.com/Freedcamp_LxR/Freedcamp_Devel_yOf/wiki/wiki_public/view/Xgaab if you signed up or email help@freedcamp.com if you have questions.

Purchase wise - you buy 3 codes or more, we set it up for you and your users go to your site.foo.bar. You can invite as many users as you need assuming your codes (one code 3 users) cover your billable users