Do you guys have any idea why these parameters &per_page=100&page=3
but doesn't work here
i keep getting page 1 data
I don't quite know why it works for one and not for the other, but here are a couple things to look at that may help point you in a direction to help you accomplish what you're trying to accomplish.
First, I'd recommend reading through this if you haven't already - https://community.canvaslms.com/t5/Developers-Group/Am-I-mistaken-or-is-pagination-in-the-quot-List-....
When looking in the developer tools in Chrome, you'll see the response headers for the links are treated a little different between "Users" and "Enrollments." Users will give you a response with page=2, page=3, etc., while Enrollments gives you a response with something like page=bookmark:Ftss3dy2xsbWVu...
You can use that "page=bookmark:..." response to jump to the different pages, but you don't know what bookmark: you're going to get for specific pages.
Hope that helps a little.