I have invested quite a bit in this coin and made money so far, but I am a little worried about the legitimacy of it all.

I can't connect the dots.

http://troyjamesexposed.com/the-affluence-network/the-troy-james-story-aka-troy-r-james-aka-troy-hogg

This guy seems to have started UNY.

Why would such an elite team not just start a fresh project?

I can see that this guy works with Arbitrade https://www.linkedin.com/in/timothymcgarvey/ - I have messaged him on Linkedin and just waiting on a reply.

But I can't find other people who are affiliated - Len Schutzman is mentioned but I can't find any link - can anyone help?

But other articles about Next Group Holdings and Arbitrade all seem to be written buy one guy:
Next Group Holdings, Inc.:
Paul Gendreau
PGPR
paul@pgprmedia.com
678-807-7945

There is always a disclaimer at the bottom of the articles https://www.prnewswire.com/news-releases/next-group-holdings-inc-partners-with-arbitrade-exchange-inc-in-joint-venture-to-launch-the-worlds-first-prepaid-gift-card-with-cryptocurrency-capability-300583799.html

I'm not trying to spread any rumours. As I say, I'm in this coin, and just want some help finding more info.  Thanks for anyone who can shed any light. I'm also keen to hear people let me know why it is a scam (obviously not repeating what has already been covered).