I've been trying to find where I can pay the enrollment fee too. There was nothing in the emails I received that had information regarding it. For reference, I was a former RU student. This website...
https://www.facebook.com/groups/404737923739506/ I titled the group name as "Rutgers - Newark ABSN Spring 2020" so people can join and distinguish between the New Brunswick
I was wondering if there is a Facebook page for the Spring 2020 Newark campus? If not, I can create one with those planning to attend the Newark campus this upcoming